The Major Advantage That Preferred Provider Organization (PPO) Payment Systems

The major advantage that preferred provider organization (PPO) payment systems have over HMOs is that the PPOs:

A) Extend benefits beyond the use of their services at an increased rate
B) Require copayment fees each time a service is rendered
C) Have services that are used by a smaller number of clients, which reduces the wait for services
D) Have a system that reduces costs more