Which of the following is a type of medical error?
A. A patient visiting the hospital to have a broken arm examined slips
and falls on a wet floor on his way to receive X-rays.
B. A pharmacist gives a patient the medication that she was
prescribed
C. A surgeon operates on a patient's left arm when his right arm
needed the operation.
D. A nurse slips and falls on a wet floor in a hospital corridor.
