With no explanation, chose the best option from "A" or "B". Dr. Carlos works in a hospital and realizes that a patient needs to have her appendix removed. Dr. Carlos wants to inform the patient.

A: Dr. Carlos tells the patient that her appendix needs to be removed and stays for 20 minutes to answer her questions.
B: Dr. Carlos tells the patient that her appendix needs to come out, tells her the scheduled surgery time, and leaves.
A.