The answer is C: maintaining access to key resources and markets.
Explanation for each option:
a. Occupying a permanent seat on the UN Security Council: This is incorrect. The United States already holds a permanent seat on the UN Security Council, along with China, France, Russia, and the United Kingdom. Therefore, this is not a goal but a current status.
b. Ensuring equal representation of the states in the Senate: This is incorrect. This is a domestic policy issue related to the structure of the US government, not a foreign policy goal. The US Senate already ensures equal representation by having two senators from each state.
c. Maintaining access to key resources and markets: This is correct. One of the primary goals of US foreign policy is to ensure economic stability and growth by maintaining access to essential resources and international markets. This involves trade agreements, diplomatic relations, and sometimes military presence to secure these interests.
d. Imposing economic sanctions on countries whose governments the US is not allied with: This is incorrect. While the US does use economic sanctions as a tool of foreign policy, it is not a goal in itself. Sanctions are typically used to achieve specific objectives, such as promoting human rights or discouraging nuclear proliferation, rather than being a standalone goal.