The answer would be C because You could use the context clues and you would read the line after guitar which would give you a clue to what the sun could possibly do to the guitar.
You could also use background knowledge for the definition of warp, which means "become or cause to become bent or twisted out of shape, typically as a result of the effects of heat or dampness."
James Weldon Johnson's The Autobiography of an Ex-Colored Man<span> is a fictional, tragic tale about a young mulatto's coming-of-age in the early 20th century. We are meant to be sympathetic</span>