The Difference Between an HMO and a PPO Is

The difference between an HMO and a PPO is:

A) Patients who are members of a PPO have less opportunity to choose their own caregivers than do members of an HMO.
B) HMOs are affected by managed care, whereas PPOs are not.
C) HMOs are usually managed by physicians, whereas PPOs are usually managed by health care administrators with business backgrounds.
D) Physicians and other caregivers work directly for an HMO, whereas they maintain more autonomy as affiliates of a PPO.