Answer:
This portrait is by Diego Velazquez called Philip IV on Horseback. Equestrian portraits became common because it was believed that leaders looked especially powerful atop a large, powerful beast (horse)
In the Lord of the Rings, to make Elijah Wood (Frodo) look smaller, they made him stand/sit in a way where he is farther away, but you can't tell he's farther away because it is an illusion.
To me, I know of Williams through films like Star Wars and Jurassic Park, the latter directed by Spielberg. So, the answer would be A!
