Please answer these multiple choice questions.

26. - 36. Answer the following questions based on the binary search tree below: 26. Is this a complete binary tree? (a) Yes (b) No 27. What is the root of the tree? (a) 7 (c) 35 (b) 15 (d) 11 28. What is the depth of the tree? (a) 1 (c) 3 (b) 2 (d) 4 29. What is the path taken in order to locate node 14 and identify that it is not in the tree? (a) 7101211 (c) 151012 NULL (b) 71012 NULL (d) 152520 NULL 30. If the value 16 were in the tree, what would its parent be? (a) 15 (c) 12 (b) 7 (d) 20 31. What are the leaves of the tree? (a) 11,22,35 (c) 7,12,20,30,11,22,35 (b) 7,12,11 (d) 7,11,22,35 32. If node 10 is deleted, what node will replace it? (a) 15 (c) 11 (b) 12 (d) NULL 33. What is the order in which these nodes will be visited in a breadth-first traversal? (a) 1510121125202230835 (c) $721011121520222523035 (b) 881112102220335302515 (d) 15102571220302112235 34. What is the order in which these nodes will be visited in a pre-order traversal? (a) 15107k121125202230235 (c) $7$10111215202225$3035 (b) 271112102220235302515 (d) 151025712203021122&35 35. How long does it take to find a node? (a) O(logn) (c) O(1) (e) O(n) (b) O(n2) (d) O(nlogn) 36. How long does it take to remove a node? (a) O(logn) (c) O(1) (e) O(n) (b) O(n2) (d) O(nlogn)