Which three statements are true?（）

A.A final method in class X can be abstract if and only if X is abstract.
B.A protected method in class X can be overridden by any subclass of X.
C.A private static method can be called only within other static methods in class X.
D.A non-static public final method in class X can be overridden in any subclass of X.
E.A public static method in class X can be called by a subclass of X without explicitly referencing the class X.
F. A method with the same signature as a private final method in class X can be implemented in a subclass of X.
G. A protected method in class X can be overridden by a subclass of X only if the subclass is in the same package as X.