The correct answer is A) Ancient Greeks.
The first record of patient confidentiality dates to Ancient Greek society.
In ancient Greece, Hippocrates is renown to have been a medical practitioner around the 5th to the 4th century BCE. In that time, medicine was not a profession and medical treatments were not validated by science. Healers used plants and herbs to create substances to be drank or creams to be rubbed. Other practitioners of the time such as Diocles of Carystus were known to be the first to record patient confidentiality to follow up with their treatments.