The Nurse Is Advising a Client Who Been Using Diphenhydramine

The nurse is advising a client who been using diphenhydramine (Benadryl) over-the-counter (OTC) to induce sleep.The client complains about a dry mouth.The nurse explains that:

A) Diphenhydramine causes less dryness if taken in the liquid form.
B) Drying of the mouth membranes is common after taking diphenhydramine.
C) Drowsiness caused by the diphenhydramine caused the client to reduce fluid intake.
D) Diphenhydramine has a muscle relaxant effect,so the client is likely sleeping with the mouth open.