Question

Which 19th century war demonstrated that the United States was a world power? A) World War I B) World War II C) The Civil War D) The Spanish-American War Eliminate

Answer 1

C. Civil War because world war 1 & 2 were in the 20th century

Answer 2

For a start, WW1 and WW2 happened in the 20th century.
Fighting amongst themselves doesnt' make them a world power, so It can't be that one.
The obvious answer is the Spanish-American war.