About Question enthuware.ocpjp.v21.2.3312 :

[nnavlani]

List<? super Dooby> dV implies that dV must point to a List of some super class of Dooby. It could be a List of Dooby, Booby, or Object. which means instead of a List, a single object of type Dooby, Booby, or an Object can be added too. And so if we give one answer as
dV.add(new Dooby(){ }); (choice a),
then why is that incorrect?

[admin]

Option 1 is correct and is indeed marked as a correct option.