Answer:
The Spanish American war was known as a splendid little war because only 385 Americans were killed in combat...etc
Explanation:
It was known as a splendid little war because America did not suffer horribly and they were at a strong advantage.
For the other options, it was the Spanish-American war but that is not what it was also known as. Yellow journalism was around but it was not a war of it. Additionally, this war was not the revolutionary war.
Hope this helps ;)