Final answer:
The Army value that best describes doing what's right, legally and morally, is 'integrity'. The highest form of political power is 'legitimacy,' because it is recognized and accepted by the public as the rightful power.
Step-by-step explanation:
The question 'Do what's right, legally and morally' best describes which Army value? can be associated with the value of integrity. In the context of the U.S. Army's core values, integrity means doing the right thing, legally and morally, at all times and in all circumstances, whether or not anyone is watching. It is about being honest and holding true to moral principles.
With regard to the reference question, 'What is the highest form of political power?', the correct answer is d. Legitimacy. Political power is most effective and stable when it is deemed legitimate, meaning that it is recognized and accepted by the public as right and proper. This acceptance gives leaders the authority to govern and ensures that power is exercised in an acknowledged and orderly fashion, as opposed to power that is seized or maintained by force alone, which is often contested and unstable.