Which leading muralist was also a committed communist who attempted to assassinate Leon Trotsky in 1940 and used industrial spray-gun techniques for his large-scale works?

• A David Alfaro Siqueiros ✓
• B Jose Clemente Orozco
• C Rufino Tamayo
• D Juan O'Gorman

Siqueiros led the failed attack on Trotsky's house in Coyoacan and pioneered pyroxylin and spray-paint methods for murals.