Answer:
e. the aggressive new national mood.
Explanation:
The numerous near-wars and diplomatic crises of the United States of America in the late 1880s and 1890s demonstrated the aggressive new national mood.
During the late 1880s and 1890s, the United States of America was mainly tensed up and aggressive towards other nations such as the Great Britain, India, etc. Thus, it took the actions of reasonable leaders (Presidents) to avert such near-wars and diplomatic crises in the United States of America.
