The Health Care Providers and Nurses Caring for a Group

The health care providers and nurses caring for a group of clients with cancer have instituted a strict nutritional program with the goal of stimulating the clients' natural killer cells.How do these cells work?
Select all that apply.

A) They phagocytize cancer cells.
B) The cells secrete chemical toxins that kill cancer cells.
C) They help to enhance inflammation.
D) They protect noncancerous cells from attack by viruses that cause cancer.
E) They modulate the adaptive immune response.