试述肉瘿的病因病机。

Which of the following statements about the accounting treatment of a zero-coupon bond is least accurate（）

A. Each year the imputed interest on a zero-coupon bond is amortized to expense, causing cash flow from operations to decrease.

B. Over time the interest expense on the zero-coupon bond will increase as the discount is amortized to interest expense, and the bond liability increases.

C. If the zero-coupon bond is redeemed prior to maturity, any amount over or under the bond’s book value should be listed as again or loss on the income statement.