Ewald Is Preparing to Go to an Orchestra Competition, and He

Ewald is preparing to go to an orchestra competition, and he hopes to win the first seat in the viola section. He plays the Beethoven symphony over and over again while playing his part, listening carefully to the sound of the various cello parts in the music. He does not even "hear" the violins, trumpets, or other instruments because he is so focused on the cello section. Ewald is demonstrating

A) selective attention.
B) parallel processing.
C) encoding transfer.
D) the serial position effect.