Percy Sometimes Has Difficulty Remembering What He Read and What

Percy sometimes has difficulty remembering what he read and what was discussed in class. He is concerned that if he doesn't improve his memory, he might not do well in college. If Percy asks you for advice on improving his memory, you should suggest that he

A) focus on memorizing words rather than big concepts.
B) avoid overlearning the material.
C) study alone rather than with classmates.
D) make studying part of his daily routine.