Which of the Following Is a True Statement About Diego

Which of the following is a true statement about Diego Rivera?

A) He is one of the most important Mexican painters of the 20^th century.
B) His major influences were Michelangelo, Leonardo da Vinci, and Raphael.
C) A self-taught artist, he sold his first major work when he was 19 years old.
D) He is famous for his monochromatic, abstract murals.