ABC Inc. has substantial Machinery & Equipment. The company applies the Revaluation Surplus model for these assets. The company had no Revaluation Surplus OCI - Machinery on its books for these assets: Book Values (after taking depreciation but before revaluation entry) and Fair Values for the following 2 years are shown below: (the table values are in 000's): Book Value Fair Value 60 90 December 31, Year 2 December 31, Year 3 120 80 Prior to Year 2, ABC recorded losses amounting to $10,000. The book values given above are net of depreciation. ABC's December 31st, Year 2 revaluation entry would include: Select one: O a. A gain of $30,000 which would appear on the income statement O b. A credit to Revaluation Surplus - Machinery & Equipment in the amount of $30,000. OC. A gain of $20,000 to the income statement and a credit Revaluation Surplus - Machinery & Equipment in the amount of $10,000 O d. Again of $10,000 to the income statement and a credit Revaluation Surplus - Machinery & Equipment in the amount of $20,000