The correct answer is option (D):
Rectify
The correct answer is Rectify. The word "Vitiate" means to spoil or impair the quality or efficiency of something. It suggests making something less effective or pure, often through the introduction of a fault or defect.
The word "Rectify," on the other hand, means to correct something, to set it right, or to improve it. It's the direct opposite of "vitiate" because it focuses on restoring or enhancing quality rather than diminishing it.
The other options don't have the same antonymous relationship:
* Trust: While the opposite of vitiate might be related to restoring trust, this option is too broad. Vitiating is a more specific action than a general lack of trust.
* Deaden: "Deaden" means to make something less sensitive or active, which doesn't directly oppose the concept of spoiling or impairing.
* Drain: "Drain" suggests removing something, like liquid or energy, which is not the same as spoiling the quality of something.
* Amuse: "Amuse" is about entertaining, which has no direct opposite relationship to impairing quality.