What is the primary difference between a Health Maintenance Organization (HMO) and a Preferred Provider Organization (PPO) plan?
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A
HMOs always have lower deductibles than PPOs
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B
HMOs typically require referrals and restrict coverage to in-network providers, while PPOs offer more flexibility with out-of-network coverage
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C
PPOs require a primary care physician designation; HMOs do not
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D
HMOs cover more services than PPOs under federal law