Answer:
I believe your answer would be C. Christine
Step-by-step explanation:
"In grammar, an antecedent is an expression that gives its meaning to a proform. A proform takes its meaning from its antecedent; e.g., "John arrived late because traffic held him up." The pronoun him refers to and takes its meaning from John, so John is the antecedent of him." the same thing would go for Christine, Christine is the antecedent of her