December 31, 2013, a Company has an investment in 2,000 of the 1,000 8% bonds with a carrying value of 2,000,000. The bonds, which mature on January 1, 2018, pay interest semiannually on July 1 and January 1. After collecting the interest on January 1, 2014, EI Greco sells the bonds for 2,220,000. EI Greco will recognize

a. an unrealized loss of 160,000.

b. a gain on the sale of debt investments for 220,000.

c. interest revenue of 160,000.

d. a loss on the sale of debt investments of 220,000.