Julio lives in Summit County, in Colorado. He has taken health insurance from Pro-Life Inc, a health maintenance organization in Colorado that has a network of health care providers

Julio can visit the health care providers in the Pro-Life Inc network, and get services at much lower rates. Julio regularly visits Dr. Amy Page, the best general physician in the Pro-Life Inc network in Summit County even though he is not satisfied with her services. When any his friend require medical services, Julio does not recommend Dr. Amy Page to them. For Dr. Amy Page, Julio is a(n) ________ customer.
A) intermediate
B) loyal
C) captive
D) repeat
E) unprofitable

C