On a Visit to Administer the Fifth in a Series

On a visit to administer the fifth in a series of 10 antibiotic doses,the home health nurse is told that the patient is now complaining about a bothersome vaginal discharge.The nurse will communicate the problem to arrange for medication and teaches the patient that this condition is probably the result of:

A) Poor genital hygiene-not changing underwear often enough
B) Allergy to the soap or soap products used in the genital area
C) Superinfection response to the antibiotic medication
D) Sexual contact with another infected person