hich of the following are characteristics of a qualified disclaimer?

$1.$ It may not redirect the bequest to another person selected by the disclaimant. It must be received by the executor of the estate within $9$ months of the death of the decedent.

$2.$ It must be written and irrevocable.

$3.$ The disclaimant may disclaim a part of an asset.

$1$ and $2.$

$1,2$ and $3.$

$1,3$ and $4.$

$1,2,3$ and $4.$