Two-Month-Old Infants Show a Decrease in Heart Rate When Placed

Multiple Choice

Two-month-old infants show a decrease in heart rate when placed on the deep side of a visual cliff apparatus, but no change in heart rate when placed on the shallow side.What does this difference in heart rate indicate about the infant's perception of depth?

A) They cannot yet detect the difference between the two sides.
B) They can detect the difference between the two sides and are afraid of the deep side.
C) They can detect the difference between the two sides, but they do not yet fear the deep side.
D) They cannot detect the difference between the two sides but are more interested in the shallow side.