Final answer:
The patient should lie on the unaffected side several times a day to prevent contractures, maintain proper alignment, and promote blood circulation.
Step-by-step explanation:
The correct answer is c) On the unaffected side. If a patient has had an AKA (above-the-knee amputation), it is important for them to lie on the unaffected side several times per day. This helps to prevent contractures and maintain proper alignment of the spine. Lying on the unaffected side reduces the risk of pressure ulcers and promotes blood circulation.