Gordon died while insured by a $$1$ million term insurance policy naming his wife Penny as the beneficiary. How much income tax will be owed by Gordon's estate on the death benefit if his last individual tax return puts him in the $25\%$ marginal bracket and his estate is in the $37\%$ fiduciary income tax marginal bracket?

Question $4$ options:

$1)$

$$400,000$

$2)$

$$0$

$3)$

$$250,000$

$4)$

$$370,000$