Which of the following statements is correct regarding the deductibility of an individual's medical expenses?

Group of answer choices

A medical expense paid by credit card is deductible in the year the credit card bill is paid.

A medical expense deduction is allowed for payments made in the current year for medical services received in earlier years.

Medical expenses, net of insurance reimbursements, are disregarded in the alternative minimum tax calculation.

A medical expense deduction is NOT allowed for Medicare insurance premiums.