Why the other options are wrong:

• It is the only type approved by sleep clinics in Ontario.: The specialist does not say hybrids are the only approved type.
• It is lighter than memory foam and easier to move.: Weight is discussed for latex mattresses, not as a hybrid advantage.
• It completely eliminates heat retention at night.: The specialist describes better airflow in hybrids, without claiming that they completely eliminate heat retention.

Correct Answer: All-latex.

Why this is correct: The specialist says all-latex mattresses often last 12 to 15 years.

Why the other options are wrong:

• Gel-infused foam.: Gel-infused foam is discussed for cooler sleeping, without a stated 12-to-15-year lifespan.
• Standard hybrid.: Hybrids are discussed for airflow and lumbar support, without a stated 12-to-15-year lifespan.
• Traditional memory foam.: Traditional memory foam is discussed as potentially trapping heat, without a stated 12-to-15-year lifespan.

Correct Answer: It exceeds both her budget and practical needs.

Why this is correct: The woman says the all-latex mattress is probably over her budget of $2,000 since it costs around $3,000. It is also very heavy, which is a problem for her small condo elevator. Both factors make it impractical.

Why the other options are wrong:

• It is unavailable in local London stores.: The specialist does not say it is unavailable in London stores.
• It does not provide enough lumbar support.: Latex is described as excellent for back pain, so support is not the issue.
• It is not suitable for side sleepers.: The specialist does not say latex is unsuitable for side sleepers.

Correct Answer: Too much firmness can worsen back pain.

Why this is correct: The specialist says too firm can actually increase back pain for side sleepers. A medium-firm mattress around six or seven on a ten-point scale is the right balance.

Why the other options are wrong:

• Extra-firm mattresses prevent spinal misalignment.: Extra-firm is not recommended - it can make pain worse.
• Softer mattresses always reduce back pain.: The specialist does not say softer is always better.
• Firmness should be determined only in-store.: The specialist recommends a firmness of six or seven and a trial at home, rather than deciding firmness only in the store.

Correct Answer: It is useful but insufficient on its own.

Why this is correct: The specialist says the in-store test helps but strongly recommends a 90- to 120-night trial. This supports store testing as useful but insufficient on its own.

Why the other options are wrong:

• It is misleading for most shoppers.: The specialist does not say in-store testing is misleading.
• It is more reliable than home trials.: Home trials are recommended in addition to store testing, not as less reliable.
• It replaces the need for return policies.: The specialist says store testing helps and strongly recommends a 90- to 120-night trial, mentioning free returns. Store testing is not described as replacing return policies.

Correct Answer: Shop for a medium-firm hybrid with a trial period.

Why this is correct: The specialist recommends a medium-firm hybrid with cooling foam. The woman says this clarifies things and thanks the specialist. She will likely go shopping for this type of mattress with a trial period.

Why the other options are wrong:

• Purchase a firm memory foam mattress immediately.: The specialist did not recommend a firm memory foam.
• Apply for OHIP coverage for a mattress.: The specialist says mattresses are not covered by OHIP, even with a medical recommendation. Applying for coverage is not the proposed next step.
• Delay her purchase until her back pain improves.: She seems ready to act, not delay.