Which of the Following Is an Example of Observational Learning

Which of the following is an example of observational learning?

A) Jonathan jumps when he hears loud thunder.
B) Nicholas is not given any dessert because he did not eat his vegetables at dinner.
C) Gina watches her mother whip up cookie dough, and she mimics her mother's behavior.
D) Sara stops having temper tantrums in public when her father begins ignoring her.