C:$4-48$ Redemption to Pay Death Taxes. John died on March $3.$ His gross estate of $$2\mathrm{.}5$ million includes First Corporation stock $(400$ of the $1,000$ outstanding shares$)$ worth $$1\mathrm{.}5$ million. John's wife, Myra, owns the remaining $600$ shares. Deductible funeral and administrative expenses amount to $$250,000.$ John, Jr$.$ is the sole beneficiary of John's estate. Estate taxes amount to $$350,000.$

a$.$ Does a redemption of First stock from John's estate, John, Jr$.,$ or John's wife qualify for sale treatment under Sec. $303?$

b$.$ On September $10,$ First Corporation redeems $200$ shares of its stock from John's estate for $$800,000.$ How does the estate treat this redemption for tax purposes?