A single paragraph in an essay should be focused on a single topic. If it begins with one focus or major point of discussion, it should not end with another or wander between different ideas. This trait of a paragraph is known as A. diversity
B. unity
C. mixture

B.

Explanation:

it ends with a marriage, but also with prospero giving up his power.

the tempest is a play written by william shakespeare between 1610-1611, it narrates the story of prospero a magician that sets a storm to wreck a ship, this sets the story to kill the king of naples. while it is a romantic style play, it isn´t traditional because of the ending, it end with the marriage and the magician giving up his powers.