Which term describes what an artwork is about?

For a variety of reasons, the composer of this selection?

a) avoids clear-cut endings to major structural sections b) avoids any strong sense of rhythm c) went to some length to conceal the work's secret program d) based the work on principles of Renaissance musical composition

The Harlem Renaissance was sparked by the __________.

A. migration of African Americans to the North B. end of World War I C. westward expansion across the nation D. African American Civil Rights movement