What is the main distinction between a PPO and EPO?

Group of answer choices

EPOs restrict members to a list of preferred or exclusive providers, and PPOs do not.

PPOs restrict members to a list of preferred or exclusive providers, and EPOs do not.

PPOs do not allow members to see out of network providers, but EPOs do$.$

EPOs require members to see primary care providers prior to seeing a specialist, while PPOs do not.