Infant vervet monkeys give indiscriminate alarm calls after sighting a potential predator; however,this skill becomes fine-tuned after social learning takes place.The response elicited by the infants before learning takes place indicates that
A)alarm calls are enhanced by spatial learning.
B)the infants cannot see very well.
C)alarm calls are an innate behaviour.
D)the infants have passed the sensitive period.
E)they do not depend on social learning.