for the first question please fill in the answer from the drop down list

Consider the tree diagram from the previous question. Which of the following answers is a subtree of the tree? Note: remember that the term subtree of a tree T refers to a tree that's directly-r connected to the root of that tree T. '3' 0 The following diagram represents a tree. Answer each of the following questions [each answer is a single integer). Note: An internal value is one that is not a leaf. What is the root value of this tree? I [ Choose ] 0 15 What is the size of this tree? 6 How many leaves does this tree have? How manyr internal values does this tree have? What is the height of the tree above? [Choose] How mam:r children does the 15 have? [Choose] What value does the parent of the -2 have? [Choose] How man}:r descendants does the 4 have? (Do not include 4 itself.) [Choose] How many ancestors does the -B have? (Do not include -3 itself.) [Choose]