When aroused, an infant displays more consistent heart beat periods, that is, their vagal tone

slows or "breaks". What is most likely to happen next?

A) The infant will show strong facial expressions of fear, assuming the emotional elicitor
was novel or unfamiliar.
B) The baby will gradually become more agitated and cry or fuss for long periods of time.
C) These changes in cardiovascular functioning will be largely unrelated to nervous system
activity.
D) The infant will begin to calm down and stop fussing or crying.

D