Select the best example of a student who is driven by intrinsic motivation to get an A in science class.

A. Raj receives money from his aunt when he has an A on his report card for any class.
B. Maria feels proud of herself when she works hard and gets good grades in her classes.
C. Cedric wants to get an A in the class so he can be chosen as a peer tutor for science.
D. Portia wants to get an A to raise her overall grade point average before applying to colleges.