Mary Smith is working full time and enrolled in Medicare Part A at age 65. She decided not to enroll in Medicare Part B at that time because her employer group health insurance coverage reimburses for physician and other outpatient encounters. Mary is eligible to enroll in Medicare Part B anytime during a(n) __________ enrollment period, which is a set time when individuals can sign up for Medicare Part B if they did not enroll when they applied for Medicare Part
a.