The Nurse Is Validating the Measurement of an Infant's Pulse

The nurse is validating the measurement of an infant's pulse by a nursing student.Which method should the nurse use to obtain the most accurate count?

A) Compress the bell of the stethoscope over the apex of the heart.
B) Locate the pulsations in the antecubital space.
C) Palpate the superficial artery on the medial side of the wrist.
D) Place the thumb and forefinger along the ridge on the outer side of the wrist.