Question 21 Which statement is correct? A A binery tree is a special case of a doubly linked list B.A linked list is a special case of a binary tree C A doubly linked list is e special cese of a binary tree D.A binary tree is a special case of a linked list Question 22 The common feeture between a binary search tree and BgTable is that O A. both store sorted data. o B.both are linked lists. c.both store data in the leaf node only. D.both are binary trees Question 23 what are the purposes of creating madules and packages in writing programs? Select a that appy O For reuse of code in different applications. For making code inline and thus more efficient. O For reuse of code in different classes of the same application O For easier maintenance through separate compllations of different parts of an application