The Client Receives Cyclophosphamide (Cytoxan) as Treatment for Cancer, and Is

The client receives cyclophosphamide (Cytoxan) as treatment for cancer, and is experiencing oral irritation as an adverse effect. What does the best plan of the nurse include as it relates to providing oral comfort?

A) Teach the client to avoid extreme temperatures of food selections.
B) Administer megestrol (Megace) to the client.
C) Teach good oral hygiene, including the use of an antiseptic mouthwash.
D) Teach the client to use a soft toothbrush for brushing the teeth.