As Camilla Tries to Play a Piece of Music from Memory,she

Multiple Choice

As Camilla tries to play a piece of music from memory,she forgets a lot of notes and in some cases lapses into playing another song that she knows better.She finds this frustrating because she has remembered this piece perfectly in the past.In this example,what seems to be the cause of forgetting

A)  storage failure
B)  interference 
C)  ineffective encoding
D)  decay