The following diagram represents a tree. 15 4. 31 -12 55 11 29 Answer each of the following questions (each answer is a single integer). What is the root value of this tree? [Choose ] What is the size of this tree? 11 How many leaves does this tree have? 3 How many internal values does this tree have? [Choose 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 ]