In the array-based implementation of the ADT bag, the nmber of items the bag can hold is unrestricted. True False QUESTION 8 If you have an object of type "Bag" called "theBag", references like theBag.itemCount and theBag.items[0] are illegal since they are defined to be private. True False QUESTION 9 Once an ADT is being used by client programs, you should not change its signature. True False QUESTION 10 The fixed size of an array can never cause a problem with processing the bag. True False QUESTION 11 When a class method does not modify any data attributes of the class, it should be made a const method. True False QUESTION 12 It is acceptable practice to change the signature of private methods since only class code would have to be up updated. True False