Which Statement BEST Describes the Results of Ebbinghaus Work on Forgetting

Which statement BEST describes the results of Ebbinghaus work on forgetting?

A) Beginning immediately,a person will slowly forget what he has learned at a relatively constant rate.
B) The person will remember what he learned pretty well for a day or two,but then he'll begin rapidly forgetting the material.
C) The person will forget most of it right away,and he'll keep on forgetting more of it,although at a slower rate.
D) Forgetting starts out slowly and then speeds up as time passes.