Final answer:
An agent in an agency relationship must still account for their actions after the relationship ends, the necessary and proper clause expands rather than limits the power of the national government, and proprietors in a proprietary colony had responsibilities beyond collecting profits.
Step-by-step explanation:
The question raises two separate issues, one regarding the role of accounting in an agency relationship and one concerning the effects of the necessary and proper clause on the power of the national government. In an agency relationship, the duty of accounting doesn't end with the relationship itself. Rather, the agent may still be held accountable for their actions during the course of the agency.
As for the necessary and proper clause, the correct answer is that it has not limited, but rather expanded the powers of the national government, allowing it to pass laws necessary and proper to execute its constitutional responsibilities. Lastly, in a proprietary colony,
the proprietors had several responsibilities beyond just collecting profits; they were responsible for the administration and governance of the colony, among other duties.