Correct option is D
The relationship between "Wilt" and "Droop" is one of similarity; both words describe a state of withering or loss of firmness. Following this pattern, "Thrive" should be related to a word that similarly describes a state of flourishing or growing well. "Thrive" means to grow or develop well. "Flourish" also means to grow or develop in a healthy or vigorous way. Thus, the correct answer is Flourish.