Could you help me by giving the answer like this:

1. A. *type the answer*

2. B. *type the answer*

3. C. *type the answer*

4. And so on

Because I am not sure which one did I get the answer wrong. Thank you.

Question 1 Not yet answered Marked out of 1.00 P Flag question If we insert the following data 12345 one by one to produce a balanced tree. How many rotation operations are performed? a 3 b. 4 Oc1 Od 2 Question 2 Not yet answered Marked out of 1.00 P Flag question If we want to make the following tree become balance 6 2 1 5 4 3 Which node will be the root? a 2 b. 5 d3 Question 3 Not yet answered Marked out of 100 P Flag question Why should a binary search tree be balanced? a. An unbalanced tree causes the height to be larger, making the node addition and subtraction operations more complex b. An unbalanced tree causes operations on the tree to take longer c. An unbalanced tree causes more memory usage d. All of these are correct Question 4 Not yet answered Marked out of 1.00 F Flag question Which of the following trees is a balanced tree? Log d. Question 5 Not yet answered Marked out of 100 P Flag question How to make the following tree become balanced tree? 9 3 5 a Rotate to the right direction on node 3, and rotate to the loft direction on node 5. ob Rotate to the right direction on node 3, and rotate to the right direction on node 5, c Rotate to the left direction on node 3, and rotate to the left direction on node 5. d. Rotate to the left direction on node 3, and rotate to the right direction on node 5, Question 6 Not yet answered Marked out of 100 P Flag question If we want to make the following tree become balance 14 16 2 6 11 10 Which node will be the root? Ob 10 Oc 14 od n Question Not yet answered Marked out of 100 P Flag question Given following unbalanced tree: Which nodes are causing the tree to be unbalanced? a 6,9, and 10 b. 3,6 and 9 C5, 6 and 10 d. 8, 9 and 10 Question 8 Not yet answered Marked out of 100 P Flag question Given following data: 78 106 11 9. If we insert those data one by one, what is the final output of balanced tree? O a. VO b. 3 6 10 9 10 Question Not yet answered Marked out of 1.00 P Flag question Given following unbalanced tree: 50 17 (76 (23 54 14 19 (72 12 67 Which nodes are causing the tree to be unbalanced? a 9 b. 76 C72 1 d. 50 e 23 f 54 g. 17 Question 10 Not yet answered Marked out of 1.00 P Flag question Which of the following trees is a balanced tree? 50 30 70 20 35 60 80 15 25 40 55 10 b. 12 18 11 17 5 4 6 3 7 2