What did Carl Vinson focus on for most of his
career and how did it impact his
career?

By concentrating on military affairs throughout his long career, Vinson became the foremost advocate of a strong national defense and the most powerful voice in Congress in shaping defense policies. His strong support of the navy earned him the nickname "the Admiral."

Explanation:

the answer is d. tariffs were raised by america's trading partners after the smoot-hawley tariff act, decreasing exports, and declining job rates.