A Scout Troop Sets Out on a Backpacking Trip

A scout troop sets out on a backpacking trip. Soon, an unexpected storm gets them drenched, and the troop leaders discover that few boys have packed warm clothes. Several scouts start shivering uncontrollably, a sign of hypothermia. The leaders call off the trip and the group heads back to their cars. This shivering response was

A) an attempt to produce heat by creating friction with their clothing.
B) an attempt to produce heat by burning large amounts of ATP.
C) a maladaptive response that wastes energy.
D) a social signal that evolved to alert adults to take action.