Answer:
Three-month-olds can remember things for at least a week.
Step-by-step explanation:
As you can see from the text shown in the question above, Jamie (a three-month-old baby) participated in an experiment where he could understand that he could control the movement of an object through the movement of his foot. A week later the researchers realized that Jamie remembers that by moving his foot he can control the movement of the object, which means that three-month-olds can remember things for at least a week.