William and Kate married in $2022$ and purchased a new home together. Each had owned and lived in separate residences for the past $5$ years. Williams adjusted basis in his old residence w hi $$200,000$; Kate's adjusted basis in her old residence was $$320,000.$ In late $2022,$ William sells his residence for $$500,000$ while Kate sells her residence for $$390,000.$ What is the total gain to be excluded from these transactions in $2022,$ assuming they file as Married Filing Joindy $($MFD$)?$A$)$ $$0$ B$)$ $$250,000$C$)$ $$320,000$D$)$ $$370,000$