C might be the right answer im not 100% positive<span />
Answer:
The Wilmot Proviso was a piece of legislation proposed by David Wilmot (D-FS-R PA) at the close of the Mexican-American War. If passed, the Proviso would have outlawed slavery in territory acquired by the United States as a result of the war, which included most of the Southwest and extended all the way to California.
Explanation:
Wet/dry climate. Its usually cooler during the dry season.