Answer:
a. 550,000
Step-by-step explanation:
The gain on the asset is calculated by the sales proceeds minus the original cost of the asset.
In this question the home' initial cost is $200,000 and it is sold on $750,000. In absence of any unusual or hardship circumstances, the direct gains is $550,000 ( $750,000 - $200,000) as all the closing costs are paid by the buyer, so, Barney ans Betty should include the whole gain of $550,000 in the gross income.