Final answer:
Chloe realizes that Donovan's gift is his ability to bring out the best in others, a notable social skill that benefits the Academy for Scholastic Distinction.
Step-by-step explanation:
In the novel Ungifted by Gordon Korman, the character Chloe identifies Donovan's unique ability to bring out the best in others as his gift in Chapter 20.
Despite being perceived as 'ungifted' by the standards of the Academy for Scholastic Distinction, Donovan's true talent lies in his capacity to create a positive impact on the people around him, even without excelling in traditional academic or intellectual pursuits.
Chloe recognizes that this social gift is of great value and can influence others in a beneficial way.