Leonardo Da Vinci's Basic Approach to Painting Was To

Leonardo da Vinci's basic approach to painting was to:

A) produce as much saleable artwork as possible for his patrons.
B) emphasize the emotional content by distorting proportion and scale.
C) depict one central mood or emotion in each piece.
D) imitate nature as closely as possible.
E) relate his impression of his subject rather than simply duplicating it.