A patient's mother was in the elevator at the hospital with two nurses and overheard the nurses talking about a patient's diagnosis and care. The mother recognized that the nurses were discussing her child and stated, "You nurses should not be talking like this in the elevator, that is my child you are talking about. I should sue you both for violating my child's confidentiality." The statement by the mother can be justified by which of the following?
a) Ideal rights
b) Negative rights
c) Substance rights
d) Process rights