Ebbinghaus Measured Forgetting as a Function of Retention Interval and Found

Multiple Choice

Ebbinghaus measured forgetting as a function of retention interval and found that

A) forgetting is very slow at first but then speeds up.
B) forgetting is rapid at first and the levels off.
C) the amount of forgetting decreases steadily with retention interval.
D) the amount of forgetting remains constant across all retention intervals.