ACC 401 SU Consolidated Financial Statements Discussion

I’m studying for my Accounting class and don’t understand how to answer this. Can you help me study? There have been “large” institutional and individuals investors say, U.S. GAAP treatment undervalued the parent’s investment carrying value for post-control step acquisitions. Construct one (1) argument in which you provide at least two (2) reasons for the U.S. GAAP treatment of reporting additional investments in subsidiaries when the parent previously established control. Provide support for your rationale.