Final answer:
Q should purchase Joint life insurance, which covers two individuals under one policy and provides a death benefit to the surviving spouse when either partner passes away.
Step-by-step explanation:
The policy that Q should purchase is Joint life insurance.
Joint life insurance is a type of policy that covers two individuals under one policy. It provides a death benefit to the surviving spouse when either partner passes away. In this case, Q wants to purchase $100,000 of permanent protection on his wife and $50,000 of term coverage on himself, all in the same policy. Joint life insurance can accommodate this need by combining both the permanent protection and term coverage in a single policy for Q and his wife.