Which statement about the life of pablo picasso is true?
a) his artistic vision changed throughout his life
b) as a young artist, he studied paintings by old masters and attended art academies in spain
c) he was born in germany, and as a child he drew with great accuracy
d) he was an innovator and developer of many styles of art
e) when he moved to paris, at first he was very poor, but then his artworks began to sell
f) he was one of the most influential artists of the eighteenth century