search in a binary search tree

(10 pts) Suppose that we are doing search in a binary search tree. Answer the following (a) Is it possible for the search to visit the following key values (in the corresponding se- quence)? 8, 20, 15, 19, 18 You need to write either YES or NO, and provide a brief explanation supporting your answer (b) Is it possible for the search to visit the following key values (in the corresponding se- quence)? 8, 20, 25, 19, 18 You need to write either YES or NO, and provide a brief explanation supporting your