Answer: D. Both A and B are correct.
Explanation: Amortization is the reduction or paying off debt over time in a series of payments of interest and principal sufficient to repay the loan in full by its maturity date. As an accounting technique, it is used to periodically lower the book value of a loan or intangible asset over a period of time. Amortization related to overvalued equipment increases consolidated net income and under the equity method (a method used in the valuation of a firm's investment in another when it holds significant influence over the firm being invested in), it increases the parent's reported net income.