Final answer:
In the story, 'Uncle Charlie's Gift,' Greg hopes to receive a pet for Christmas.
Step-by-step explanation:
The correct answer is C) A pet. In the story, 'Uncle Charlie's Gift,' Greg hopes to receive a pet for Christmas from his uncle. Greg has always wanted a pet and expresses his desire to his uncle. While Greg receives other gifts throughout the story, he ultimately receives a pet, fulfilling his Christmas wish.