Eduardo Realizes That His Chemistry Final Is Approaching Fast

Eduardo realizes that his Chemistry final is approaching fast.What is the worst thing he could do to prepare for the final?

A) wait until the night before to start his studying
B) start studying more than a week in advance,since this might cause him to forget important material
C) begin making flash cards;research suggests that flash cards should be made throughout the semester and not at the last minute
D) study with friends who use different study methods than Eduardo does,since research shows that this often results in confusion