Which of the following statements most accurately reflects the relationship between emotions and memory?

a. Emotion blocks memory, and it is generally true that we are unable to recall highly emotional events.

b. Excitement tends to increase the chance that an event will be remembered, but stress decreases the chance that an event will be remembered.

c. Stress tends to increase the chance that an event will be remembered, but excitement decreases the chance that an event will be remembered.

d. The effect of emotion on memory depends on the interpretation of the event in the frontal lobes.

e. Emotion enhances memory because it is important for our survival to remember events that make us emotional.