Al-Manseer corporation purchased a machine for 50,000 from its 90 percent-owned subsidiary, Dream corporation on January 1, 2015. The machine carrying amount was 30,000 $ at that time and the remaining useful life 5 years. What is the amount by which the investment to dream account will be affected by the unrealized gains from this transaction at December 31,2017?

Select one:

a. $10,800

b. None of the answer is correct

c. $12,000

d. $20,000