Wallace owns a construction company that builds both commercial and residential buildings. He contracts to build a residential building for $800,000 for which he is eligible to use the completed contract method of accounting. In the current year for regular income tax purposes, Wallace does not recognize any income on the contract. Under the percentage of complete method, the income recognized under the contract would have been $60,000. Wallace's AMT adjustment is:
a. $0.
b. $60,000 negative adjustment.
c. $60,000 positive adjustment.
d. $800,000 positive adjustment.
e. None of the above.