Diseases, such as yellow fever, were the number one cause of death and the actual enemies during the Spanish-American War. The war claimed the lives of nearly 3,000 American soldiers, but only a small amount actually died in combat. Meaning, the diseases were what actually killed most soldiers. So you answer is C, diseases such as yellow fever.
Lack of fresh, clean supplies of water, increased famine, and energy shortages.
He wanted the united states and panahma to share ownership of canada.
i’d say racism, it would be better if we knew the context of this question.