Picasso, who said, "i do not seek, i find," followed a simple process in creating art. which of his masterpieces is a primal motif of western art?

These would have been the following choices:
a) portrait of gertrude stein 
b) les demoiselles d'avignon 
c) the bulls head

The primal motif of Picasso's Western art is C.) THE BULL'S HEAD. 

The Bull's Head is a masterpiece created by Picasso. It is an artwork that is composed of found objects like seat and handlebar of a bicycle. He created it in 1942

He showed real human suffering rather than symbolism.