Tom Was Knocked Unconscious Briefly During a Game While Playing

Multiple Choice

Tom was knocked unconscious briefly during a game while playing on his high school's football team.He does not remember much about the immediate circumstances leading to the injury.Why?

A) There was insufficient time for memory storage in the cerebral cortex.
B) He was motivated to forget the event because of its unpleasant nature.
C) Synaptic consolidation of memories was interrupted by the head injury.
D) There was insufficient time for memory storage in the hippocampus.