"If a superclass method is native, then the overriding method must also be native." was marked false.
Override means, when a method has the same name and type signature as a method in its super class. So if return type, method name & parameters are same means it is overridden. Other than that access modifiers, throwing an exception... could be different. Only the thing is, Overriding methods can not be more restrictive than the original method.
So, as per my understanding it should be false only.