If You Use Flash Cards, It Would Be Best to

If you use flash cards, it would be best to

A) go through the cards in the same order at least three times.
B) set aside any cards that you answer correctly the first time and not include them in future study.
C) look at the first card, move it a few cards back, then a little further back in the stack each time.
D) shuffle the cards each time so that the cards are presented in random order each time.