The Nurse Using Either a Regular or an Electronic Sphygmomanometer

The nurse using either a regular or an electronic sphygmomanometer would ensure that the cuff is the correct size by:

A) using a narrow cuff for an obese patient.
B) making sure the width of the bladder is at least 3 inches.
C) confirming that the bladder goes around three fourths of the arm.
D) always using a wide cuff.