Though Ripley Typically Thinks of Himself as an A/B Student

Though Ripley typically thinks of himself as an A/B student, when he receives a C in British literature he's thrilled. He tells his sister that he was confused throughout the class and expected to fail it completely. Ripley feels better than he might have had he received the grade in another class due to

A) the fact that British literature is a notoriously difficult subject.
B) his belief system about the subject and the grade.
C) the fact that a C in one class won't destroy his grade point average.
D) his sister's support.
E) repression.