What Does Research on the Ability to Recall Early Childhood

What does research on the ability to recall early childhood events indicate about most adults' memories?

A) Most adults do not recall events that occurred before age 3 because of the young child's limited memory capacity.
B) Most adults do not recall events that occurred before age 3, possibly because the events were stored nonverbally and are difficult to retrieve.
C) Most adults recall numerous vivid memories of events that occurred before age 3, particularly emotional events such as birthdays or scary events such as injuries.
D) Most adults do not recall events that occurred before age 3, probably because of the emotional nature of the content.