Researchers Have Conducted Many Studies About How Students Allocate Their

Researchers have conducted many studies about how students allocate their time, when studying for an exam. In general, these studies show that

A) without time pressure, students spend more time studying difficult material.
B) without time pressure, students spend more time studying easy material.
C) with time pressure, students spend more time studying difficult material.
D) with time pressure, students tend to study randomly, without using strategies about which items to focus on.