A Patient Is Admitted to the Critical Care Unit with the Diagnosis

A patient is admitted to the critical care unit with the diagnosis of massive head trauma caused by a motor vehicle accident.The patient is unresponsive and on mechanical ventilation.The electroencephalogram is negative for brain waves.The family has agreed to organ donation.The nurse will check for the absence of cerebral motor reflexes by

A) performing a sternal rub.
B) needle pricks to fingers and toes.
C) clapping hands near the ears.
D) applying pressure to the nail beds or supraorbital ridge.