The Nurse's Most Informed Response to the Client's Question "What

The nurse's most informed response to the client's question "What is a complementary therapy?" would be:

A) "Relaxation is an example of a complementary therapy."
B) "It is any intervention that increases your ability to cope with illness."
C) "Massage therapy is complementary to muscle relaxant medications."
D) "They are therapies that are used in addition to what your PCP orders."