Ebbinghaus' Curve of Forgetting Shows That ____.​

Ebbinghaus' curve of forgetting shows that ____.​

A) ​material is forgotten slowly in the first hours after learning and then the forgetting speeds up
B) the decay theory of forgetting is essentially correct
C) ​material learned first is forgotten last
D) material is forgotten rapidly in the first hours after learning and then the forgetting slows down
E) forgetting occurs at a gradual,even rate across time