哪里体现了accounting standard 的问题啊

问题如下：

A significant portion of PDQ’s net income is explained by its 20 percent minority interest in Astana Systems. Wetstone collects certain data related to both PDQ and Astana in order to estimate the financials of PDQ on a stand-alone basis.

The estimate of PDQ’s solo value is crude because of:

选项：

A.

the potential differences in accounting standards used by PDQ and Astana.

B.

the differing risk characteristics of PDQ and Astana.

C.

differences in liquidity and market efficiency where PDQ and Astana trade.

解释：

Estimates of Astana’s impact on PDQ’s financial statements are crude due to the potential differences in accounting standards used by the two firms. Based on the currencies each reports in, Astana is likely using US GAAP and PDQ is likely using IFRS. Pricing (market capitalization) should reflect the other potential differences.