Which of the following is true about Medicare Supplement Insurance
Plans?
a They can only be purchased during the Annual Election Period (AEP).
b Plan benefit amounts automatically update when Medicare changes cost sharing amounts, such as deductibles,
coinsurance and copayments.
c To see a specialist, insured members must obtain referrals from a primary care provider.
d They are regulated by the Centers for Medicare & Medicaid Services (CMS).