The Nurse Is Working in a Facility That Uses Music

The nurse is working in a facility that uses music as therapy. What is true regarding this therapy?

A) Music therapy decreases blood pressure and heart rate in patients with coronary heart disease.
B) Music therapy uses high frequency music that is played for an hour at a time.
C) Music therapy decreases cholesterol and homocysteine levels in patients with coronary heart disease.
D) Music therapy uses low frequency music that is played for two hours at a time.