In the Case of Google,which Has Issued Class a and Class

Multiple Choice

In the case of Google,which has issued Class A and Class B shares:
I.both classes of shares have the same cash-flow rights;
II.both classes of shares have the same control rights;
III.both classes of shares have different cash-flow rights;
IV.both classes of shares have different control rights

A) I and II only
B) II and III only
C) I and IV only
D) III and IV only