Final answer:
Choosing options C and E for Part A would ensure friendship with the U.S., while option B for Part B explains when the U.S. might exercise international police power.
Step-by-step explanation:
For Part A, the options that would ensure friendship from the United States are choices C and E. The friendly behavior of another country's people (Option C) and a nation showing it can maintain internal order (Option E) are conducive to positive relations with the U.S. Options A, B, and D, which imply aggression and corruption, would not foster friendship.
For Part B, the option that would cause the U.S. to exercise international police power is B, consistent cases of wrongdoing or impotence. This aligns with the principles of intervening to restore order or address misconduct in international affairs. The U.S. foreign policy instruments allow for such actions, although they come with pros and cons as mentioned in your reference material. Essentially, such intervention aims at maintaining global stability and following the country's national interests.