Why the other options are wrong:

• To improve the outside appearance of her house.: She does not mention improving the outside appearance of her house.
• To prepare her house for sale.: Preparing the house for sale is not discussed in the conversation.
• To follow new city building rules.: New city building rules are never mentioned as a factor.

Correct Answer: They contain argon gas between two panes.

Why this is correct: The installer describes double-pane windows as two glass layers with argon gas between them. The transcript does not explain the heat-transfer mechanism.

Why the other options are wrong:

• They are only suitable for mild climates.: Double-pane windows are described as suitable for Winnipeg's harsh climate, not only for mild areas.
• They are made with three layers of glass.: Three layers of glass describe triple-pane windows, not double-pane.
• They do not reduce outside noise.: The installer says both double and triple-pane windows reduce outside noise.

Correct Answer: They provide better insulation with an extra layer of glass.

Why this is correct: The installer says triple-pane windows add a third layer of glass, which improves insulation. The extra layer provides better heat retention than double-pane. However, it does cost more per window.

Why the other options are wrong:

• They do not require argon gas between the panes.: Argon is specified for double-pane windows. The transcript does not establish that triple-pane windows avoid it.
• They can be installed much faster than double-pane.: Installation speed is not mentioned as different between the two types.
• They are available in more styles and colours.: Styles and colours are not discussed as an advantage of triple-pane windows.

Correct Answer: Double-pane windows.

Why this is correct: The installer says most customers near busy streets are happy with double-pane windows. They provide good noise reduction at a more affordable price. This makes double-pane the popular choice for that situation.

Why the other options are wrong:

• Single-pane windows with Low-E coating.: Single-pane windows with Low-E coating are not discussed as an option.
• Non-rated windows without gas filling.: Non-rated windows without gas filling are never mentioned in the conversation.
• Triple-pane windows only.: The installer does not say only triple-pane windows satisfy customers near busy streets.

Correct Answer: They offer a good balance of cost and performance.

Why this is correct: The installer recommends high-quality double-pane with Low-E coating. The provider says this option balances cost, warmth, and noise reduction well. It fits the woman's limited budget while still providing solid performance.

Why the other options are wrong:

• They are required by Efficiency Manitoba.: The installer mentions Efficiency Manitoba rebates but does not say the agency requires the customer to choose double-pane windows.
• They completely block outside noise.: Both types reduce noise, and triple-pane is slightly better. Complete sound blocking is not claimed for double-pane.
• They are the only option that qualifies for rebates.: The installer says double-pane often qualifies for rebates, but the provider does not say it is the only option that qualifies.

Correct Answer: Prepare a written price estimate.

Why this is correct: The installer offers to provide a written quote at the end of the conversation. The woman shows interest and thanks him for explaining everything. Preparing a written price estimate is the natural next step.

Why the other options are wrong:

• Order the triple-pane windows immediately.: The installer recommends double-pane for the budget and offers a written quote; immediate ordering of triple-pane is not proposed.
• Schedule a city inspection.: A city inspection is not discussed as a next step in the process.
• Apply for the rebate on her behalf.: The installer does not offer to apply for the rebate on her behalf.