Which of the Following Is an Example of an Asymmetric

Which of the following is an example of an asymmetric information problem?

A) A corporation releases toxic wastes into a river.
B) A corporation relocates to Ireland to take advantage of lower corporate tax rates.
C) A stock analyst rates a stock higher than it deserves because the securities firm she works for wants to obtain business from the corporation that issued the stock.
D) A corporation manipulates its financial information to avoid disclosing a large loss from its operations in China.