The Nurse Explains to the Client Why Combination Therapy and Special

The nurse explains to the client why combination therapy and special dosing schedules are used to treat cancer.Which client response indicates the need for further teaching?

A) "This is more effective than using one medication."
B) "Lower doses of the medications can be given."
C) "The medications need to be given in higher doses when used in combination."
D) "This reduces the resistance to medication."