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? [Choose ] [ Choose What is the size of this tree? 55 1 6 11 2 How many leaves does this tree have? 0 How many internal values does this tree have? What is the height of the tree above? [Choose ] How many children does the 15 have? [Choose ] What value does the parent of the -2 have? [Choose ] How many descendants does the 4 have? (Do not include 4 itself.) [Choose] How many ancestors does the -8 have? (Do not include -8 itself.) [Choose ]