10. On December 31, 2018, B Corp. sold a machine to Royal and simultaneously leased it back for one year. Pertinent information at this date follows: Sales price Book value Present value of lease rentals ($6,000 for 12 months at 12%) $ 720,000 660,000 68,200 12 years Estimated remaining useful life In 2018, B should recognize a gain from the sale of this machine of: A. $0. B. $8,200. C. $60,000. D. $68,200