On January 1, 2018, Glanville Company sold goods to Otter Corporation. Otter signed an installment note requiring payment of $15,000 annually for six years. The first payment was made on January 1, 2018. The prevailing rate of interest for this type of note at date of issuance was 8%. Glanville should record sales revenue in January 2016 of:

a. $90,000.
b. $74,891.
c. $69,343.
d. None of these answer choices is correct.