Final answer:
The Medigap plans referred to in the question are supplemental insurance plans for Original Medicare. Plan F has been one of the most popular plans, but new enrollees can no longer purchase it, making Plan G a likely popular choice now. Specifying Plan A, K, and L as the most common without data to support the claim may not be accurate.
Step-by-step explanation:
The subject of the question Medigap plans refers to the supplemental insurance that is sold by private companies to help cover some of the health care costs that Original Medicare doesn't cover, such as copayments, coinsurance, and deductibles. Among those available, Plan F has historically been one of the most popular Medigap plans because it offers the most comprehensive coverage, including covering Part B excess charges. However, as of January 1, 2020, Plan F and Plan C are no longer available to new Medicare enrollees. Individuals who were already enrolled in Medicare before that date can still purchase these plans. For those new to Medicare, Plan G may be gaining in popularity due to its similar benefits to Plan F, except for not covering the Part B deductible. Plan N is another option that offers lower premiums with some cost-sharing elements, such as copayments for doctor visits and emergency room visits if not admitted to the hospital.
Therefore, saying that Plan A, K, and L are the most common Medigap plans sold might not be fully accurate without specific data to back up this claim. Plan A is typically the most basic, offering the few core benefits, while Plan K and L offer cost-sharing features that might be appealing to some, but are not typically classified among the most popular plans.