Answer:
$1,800,000
Explanation:
As per the section of 1014(a) (2) pf IRS the basis of the inherited property is normally the fair market value at the time of dealth.
In the case when there is an alternative valuation date i.e. chosen so here the basis should be at the fair market value because the valuation is less than the value at death
So $1,800,000 should be considered