After Wearing's Brain Injury, He Could Still Play the Piano

Multiple Choice

After Wearing's brain injury, he could still play the piano, but he could no longer remember his surroundings for more than a minute or so. How would a scientist describe this situation?

A) Wearing's injury affected his prospective memory, but his semantic memory remained intact.
B) Wearing's injury affected his semantic memory, but his prospective memory remained intact.
C) The injury affected his procedural memory, but his episodic memory remained intact.
D) The injury affected his episodic memory, but his procedural memory remained intact.