I would have to agree with you! B is the correct answer because the doctor is disclosing that confidential information with the nurse that is not on the case.
B. A doctor tells a nurse at lunch about a patient’s medical condition.
Explanation:
It's ok for doctors to disclose the medical condition and even diagnosis of a patient with the nurse who is currently assisting, but only because it's important for that nurse to know what's going on so they can provide the most effective care possible. If they are at lunch however, that means they're on break, they're not in the privacy of the patient's room, and they're most likely going to be in earshot of other people.
You can write up a petition or raise money for the school. If you raise enough money then it can put the P.E class back on track. Without Physical Education your classmates will gain weight and not know how to eat and live healthily.