Answer:
OPTION A
The best demonstration of a difference in power in The Tempest is that some characters have magical abilities while others do not.
Explanation:
The Tempest is a comedy play written by William Shakespeare, it was first performed in 1611, and it is famous for being one of his last and greatest works. The story takes place on an island in which Prospero (a noble man that was forced to leave his country because he was accused of betraying the king) makes use of his magic to manipulate the weather, objects and people around him.
"It was a torment
(...) which Sycorax
could not again undo. It was mine art,
when I arrived and heard thee, that made gape
the pine and let thee out" Act I Scene I Lines 343-347
In this quote from the play we can see that Prosperos' magic was bigger than Sycorax's magic (a very powerful witch), this establishes the power that Prospero had over everybody on the island, even over the most powerful witch on the island.
