explain plz

6. Lorik and Emina, who are married, sold their home this year. They had owned and lived in the house for 22 years. They signed a contract on August 2 to sell their home and closed the sale on September 4. Based on these facts, what is the amount of his recognized gain? A) $0 B) $10,000 C) $510,000 D) $550,000