John Recently Found Out That There Are Significant Gaps in His

John recently found out that there are significant gaps in his Medicare coverage. This means that some of his medical services will not be covered, including:

A) excess charges by doctors who do not accept Medicare assignments.
B) supplies that Medicare does not cover.
C) long-term nursing care.
D) custodial care, dentures, dental care, eyeglasses, and hearing aids.
E) All of these are correct.