Concerning a pre$-2019$ divorce, which of the following items may be considered alimony?

Noncash property settlement.

Payments Mr$.$ Stone made under a written separation agreement for the mortgage and

real estate taxes on a home he owned by himself and in which his former spouse lived

rent$-$free.

Payments made to a third party on behalf of the former spouse for the former spouse's

medical expenses.

Payments made for the $3-$month period after the death of the recipient spouse.