Why the other options are wrong:

• She wants advice on moving to a new condo.: She does not mention wanting advice about her condo move.
• Her doctor required a sleep assessment.: Her family doctor is not mentioned as requiring a sleep assessment.
• Her physiotherapy exercises were too difficult to continue.: She says physiotherapy helped but the pain returns; she does not say the exercises were too hard.

Correct Answer: They lose support as the material breaks down.

Why this is correct: The specialist explains that memory foam can break down over time, softening and losing support past seven years. The patient's mattress is eight years old, so it has likely lost the support her back needs. This breakdown is a common issue with older foam mattresses.

Why the other options are wrong:

• They trap heat because of metal coils.: Metal coils are found in hybrids, not memory foam, and they are not linked to heat trapping here.
• They become too firm over time.: The specialist says memory foam softens, not that it becomes too firm.
• They are difficult to deliver to condos.: Delivery difficulty is not mentioned as a problem with memory foam mattresses.

Correct Answer: Latex mattresses.

Why this is correct: The specialist says latex mattresses cost about $2,200, which is more than hybrids at $1,400 to $1,800 and basic memory foam under $1,000. Latex is clearly the most expensive type discussed in the conversation.

Why the other options are wrong:

• Basic memory foam mattresses.: Basic memory foam is the cheapest option mentioned.
• Hybrid mattresses.: Hybrids fall in the mid-range at $1,400 to $1,800.
• Compressed box mattresses.: Compressed box mattresses are not listed as a separate price category.

Correct Answer: Medium-firm mattresses suit most people.

Why this is correct: The specialist says medium-firm works for most people with back pain. The specialist also explains that too firm can cause pressure points, which is a problem. This means the idea that firmer is always better is a myth.

Why the other options are wrong:

• Extra-firm mattresses prevent pressure points.: The specialist says too much firmness can cause pressure points, rather than preventing them.
• Soft mattresses are best for spinal alignment.: Soft mattresses are not recommended for spinal alignment in the conversation.
• Firmness matters more than zoned support.: The specialist says zoned support matters more than overall firmness, not less.

Correct Answer: Zoned support for different body areas.

Why this is correct: The specialist says zoned support, with greater firmness under the hips, is more important than overall firmness. This supports choosing targeted support rather than simply the firmest mattress.

Why the other options are wrong:

• A long delivery window.: Delivery windows are not discussed as a mattress feature.
• Extra mattress height.: Extra mattress height is not mentioned in the conversation.
• Natural fabric covers.: Natural fabric covers are not brought up by the specialist.

Correct Answer: It balances support, temperature control, and condo practicality.

Why this is correct: The specialist recommends a medium-firm hybrid with zoned support to balance support, temperature and practicality for the condo. Many hybrids come boxed, but this specific model’s elevator fit is not confirmed.

Why the other options are wrong:

• It is the cheapest option available in Canada.: Hybrids are mid-range, not the cheapest option.
• It requires no trial period or warranty.: The specialist advises looking for at least a 100-night trial and a 10-year warranty, rather than recommending a model without needing those protections.
• It is firmer than both latex and memory foam.: The specialist does not say hybrids are firmer than both latex and memory foam.