Task: Which one is NOT a correct practice under the current GAAP for investments in equity securities?
A) When a firm has 15% of the ownership and the fair value is not available, the firm should use the equity method
B) When a firm has 35% of the ownership, the firm should use the equity method.
C) When a firm has 55% of the ownership, the firm should use the consolidation
D) Although a firm has less than 50% of the ownership, if the firm actually controls the business operation of the target firm, the firm should use the consolidation