Am i missing any ok’s tell me

Sigmund freud had much to do with the belief that

What is perception? a) the complete awareness of an object b) the artists point of view c) the outline of an object

Pls! choice of medium allows the artist to a.convey different messages.b.experiment with combining materials to create new media.c.reconnect with old forms of art.d.improve realism in art, particularly with portraits.