A Percent recall of words is greatest immediately after learning → Percent recall decreases rapidly within the first hour → Percent recall further decreases rapidly after 30 days
B Percent recall of words is greatest immediately after learning → Percent recall decreases rapidly within the first hour → Forgetting levels off after the first hour
C Percent recall of words is greatest after two days → Forgetting levels off within 10 – 15 days → Percent recall decreases further after 30 days.
D Percent recall of words is greatest after 2 days → Percent recall decreases rapidly 20 days → Forgetting levels off after 30 days
