Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 1/5
During the Medicare Annual Election Period (AEP), beneficiaries may:
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
The Annual Election Period (AEP) is the yearly fall window during which Medicare beneficiaries may enroll in, switch, or drop Medicare Advantage and Part D prescription drug plans, with the changes effective January 1 of the following year. The AEP is distinct from the Part B General Enrollment Period, from the Initial Enrollment Period, and from Special Enrollment Periods. It does not change Part B enrollment, the statutory Part B deductible, or the Part A lifetime reserve feature. The AEP is also called the Fall Open Enrollment period.
Why the other options are wrong
- B) Part B has its own enrollment windows and its own late-enrollment penalty rules; the AEP is not a penalty-free Part B enrollment opportunity. Part B enrollment follows its own statutory windows.
- C) The Part B deductible is set by statute and applies uniformly; beneficiaries do not choose its amount during the AEP. The Part B deductible is set by statute and applies to everyone.
- D) Lifetime reserve days are a Part A hospital feature and are not adjusted through the AEP. Lifetime reserve days are a Part A feature and are not adjusted through the AEP.
Memory hook
AEP = the annual fall reshuffle for MA and Part D plans, landing on January 1. Part B plays by different rules.