Answer:
A - Anterograde amnesia.
Explanation:
As the exercise explains with Quincy, anterograde amnesia happens when the individual can remember her life up to the event that caused her amnesia. Her long term memory, before the moment where she was struck on the head, remains intact but it will still be unable to create new memories. The part of the brain that handles memories is yet to be fully discovered, making amneasia-type complications hard to recover from.