Did this today am i that old im only 15

How do i attach images to my questions on

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.

Explain briefly why the melodies, the ‘catchy tunes’ associated with the various intervals, are a useful tool for ear training.