Final answer:
The amygdala is the brain part responsible for storing the memory of fear in this situation. It is involved in emotional responses and memory function.
Step-by-step explanation:
The brain part responsible for storing the memory of fear in this situation is the Amygdala. The amygdala is a group of nuclei in the medial region of the temporal lobe that is involved in emotional responses and memory function. It regulates emotions such as fear and aggression and plays a part in determining what memories to store based on our emotional response to an event.