Research suggests that two ways in which cancer patients can potentially slow the disease's progressions are:

A) stimulating the body's fight-or-flight response and guided imagery
B) strenuous exercise and stimulating the HPA axis
C) allowing themselves to become angry about having cancer and accepting that they will probably die.
D) learning anger management techniques and being optimistic

Answer: D
Rationale: Autonomic nervous system (fight-or-flight) activity and stimulation of the HPA axis can compromise how well an individual can fight cancer. Individuals who have undergone assertiveness training and learn anger management techniques show reduced autonomic activity and hormonal activity associated with the HPA axis. Also, those who are optimistic, cope by using humor, and have a positive outlook on the disease (and thus less stress) show physiological benefits such as greater immune response.