Consolidation 的revenue不太理解

问题如下：

Cupernico, Inc., Strawberry Mines Corp., and Glace, S.A., were global gold mining companies. Cupernico and Strawberry were both headquartered in the United States and complied with US GAAP. Glace was a French company that followed International Financial Reporting Standards (IFRS).

On 1 January 2011, the three companies combined their Peruvian operations into a separate company, AdOre Ventures. The fair value of assets contributed by each company was in proportion to its ownership interest as shown in Exhibit 1. Cupernico was considered to have control over AdOre because of its ownership interest and representation on AdOre’s board of directors. Both Strawberry Mines and Glace were considered to have significant influence.

On 1 January 2012, Glace acquired Strawberry Mines. Given AdOre’s relatively brief operating history, Glace determined that the fair value of assets remained equal to the value at which they were carried on AdOre’s books. Because the merger left Glace and Cupernico with equal economic interests in AdOre, the two companies negotiated a joint control agreement.

The best conclusion Strong can make about the effect of the ownership change of AdOre in 2012 was Cupernico reporting a:

选项：

A.

lower return on assets (ROA).

B.

lower net profit margin.

C.

higher return on equity (ROE).

解释：

In 2012, Cupernico and Glace shared joint control. Cupernico must use the equity method under US GAAP; if the ownership structure had not changed, Cupernico would have continued to use the consolidation method.