What restriction does using <? super T> in a generic class or method impose?

When using a generic class or method with the <? super T> restriction, objects of type T or any of its superclasses can be added to a collection. This means that objects of more specific types cannot be added, but it allows for a wider range of objects to be accepted. Options A, C, and D are incorrect because they imply more limitations on the type of objects that can be used, while option B provides the most accurate description of the restriction imposed by <? super T>.