The right answer is corrupt because you're looking for a synonym of ignoble.
The first sentence gives the main idea of the selection
<span>C. Most of what drives Prospero in the tempest is his ability to control events, particularly when it comes to exacting revenge on his usurper brother Antonio. Having Ariel put the characters to sleep means that he can freely achieve his goals.</span>
Answer:
A. that he has become more comfortable with killing in order to keep his throne
Explanation: