Which Statement About Pain Experienced by Infants Is True

Which statement about pain experienced by infants is true?

A) Pain in infants can only be assessed through findings of physiological changes,such as increased heart rate.
B) The Faces Pain Scale can be used to assess pain in infants.
C) A procedure that induces pain in adults will also induce pain in infants.
D) Infants feel pain less than adults do.