What is the antecedent for the pronoun shown in this sentence?

marietta's sister asked if she could borrow the new red sweater that their mother had bought for marietta's birthday.

a. marietta
b. sister
c. sweater
d. mother

Martin luther king jr often spoke of a day in the future when he hoped that his children would be judged not by their skin color but instead by their character. write a narrative essay about a moment in your life when you were judged by something other than the content of your character. use narrative techniques to develop experiencies, events, and characters