QUESTION 15 On August 8, 2019, Sam, single, age 62, sold for $210,000 his principal residence, which he has lived in for 10 years, and which had an adjusted basis of $60,000. On November 1, 2019, he purchased a new residence for $80,000. For 2019, Sam should recognize a gain on the sale of his residence of O a. So O b. $25,000 c. $50,000 Od $130,000 Oe. None of these