A Small Baby Is Laying Quietly in Its Crib When

A small baby is laying quietly in its crib when it hears a door slam, very loudly. What behavior is it likely to display?

A) The baby will fling its hands out, then contract into a fetal position with fingers clenched in order to grab onto whatever it can.
B) The baby will become very still, ceasing all movement in order to avoid being seen.
C) The baby will roll over onto its stomach, in order to protect the inner organs from damage.
D) The baby is likely to display all of the behaviors above.