Which Code Is the Equivalent of the Following Method Header

Which code is the equivalent of the following method header?
Public static <E> void abc(Stack<E> stack) { . . . }
I public static void abc(Stack<?> stack) { . . . }
II public static <Object> void abc (Stack<Object> stack) { . . . }
III public static void abc(Stack stack) { . . . }

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