1. Tom has owned his house for 20 years, and he paid $400,000 for it. In 2016 he married Gisele and she moved into the house, which remained their main residence until 2019. In late 2019, Tom sold the house (Gisele was not added to the ownership records) and moved to Tampa. The house was sold for $1,100,000. Neither Tom nor Gisele excluded the sale of another house in the last two years. How much of the gain can be excluded for tax purposes?

	a.	$400,000
	b.	$0
	c.	$700,000
	d.	$500,000