The "So you think you know art" game

Some of these pictures are "great" works of art which you would go to the best galleries to see and would pay enormous sums of money to collect. Some of these paintings were created by small children and people with disabilities or mental illnesses. IF you can tell me which is which, you will win a cyber prize. No outsider art which has recieved a great deal of recognition is included. This is the first part of the game:

a)

b)

c)

Have fun, and feel free to post your own. This isn't a criticism of modern art, which I happen to like. I'm just curious as to how well you can tell these categories apart.