On January 2, 2011, Parent Company paid $1,200,000 for 100% of the voting common stock of Sub Corp. At the time of the investment, Sub Corp had net assets with a book value of $800,000 and fair value of $1,000,000. The fair value increase is attributable to the building and will be amortized over 10 years. During 2011, Sub earned net income of $100,000 and paid dividends of $20,000. Any excess cost over fair value is attributable to goodwill with an indefinite life. What is the amount of goodwill from Parent's investment in Sub?
a) $200,000
b) $400,000
c) $1,200,000
d) $20,000