The Romantic Period one of the most important periods in the history of American literature stretches from the end of ______________ to the outbreak of ____________.

The Romantic Period, one of the most important periods in the history of American literature, stretches from the end of ______________ to the outbreak of ____________.

A.the 17th century … the American War of Independence

B.the 18th century … the American Civil War

C.the 17th century … the American Civil War

D.the 18th century … the U.S.– Mexican War

请帮忙给出正确答案和分析，谢谢！