On 1/1/2019, P Co acquired 100% of the stock of S co. On this date,P had Retained Earnings of $50,000 and S had Retained Earnings of $25,000. On December 31, 2019, P had Retained Earnings of $60,000 and S had Retained Earnings of $30,000. The amount of Retained Earnings that appeared in the 31/12/2019 consolidated balance sheet was

Select one:

a. 90,000

b. 85,000

c. 60,000

d. 65,000