is a program in which the person chooses a primary care physician who is affiliated with the plan to manage the person's health care. A. An HMO B. A PPO C. Managed health care D. All of the above (50 points)

D alll of the above

Explanation:

Its all of the things mentioned

HMo is a Health maintenance organization

which will help people manage their health  

PPo is Preferred provider organization

which will also support you on creating or choosing primary care physician

answer(d) call 911;