He would have to push on it creating a torque that causes angular velocity of the merry go round to change.
If I am not mistaken, I believe it should be 'A', if you meant "the gold and brown puzzle pieces are on the cats head" not "the gold and brown puzzle pieces are the cat's head".
I think the answer is 'B' because even though it is the Declaration of Independence it should still be flexible for everyone not just a few certain people.
The Earth being round is an example of a paradigm. Remember that the definition of a paradigm is a widely accepted belief.
Hope this helped you hon