William and Kate Married in 2015 and Purchased a New

Multiple Choice

William and Kate married in 2015 and purchased a new home together.Each had owned and lived in separate residences for the past 5 years.William's adjusted basis in his old residence was $200,000; Kate's adjusted basis in her old residence was $120,000.In late 2015,William sells his residence for $500,000 while Kate sells her residence for $190,000.What is the total gain to be excluded from these transactions in 2015?

A) $0
B) $250,000
C) $320,000
D) $370,000