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Which of the following is non-linear data structure? (Select all the corcect answers) a. Trees b. Arrays c. Graphs d. Lists QUESTION 7 Rearranging the contents of a data structure into a certain order is called a. Searching b. Insering c. Sorting: d. Deleting Ordered arrays, compared with unordered arrays, are a. Quicker at searching. b. Quicker at insertion. c. Quicker to create. d. Quicker at deletion. QUESTION 9 Given an array list ={45,77,89,90,94,99,100} and key =99; what are the mid values in the first and second levels of iteration? a. 90 and 99 b. 89 and 99 c. 89 and 94 d. 90 and 94 b. 89 and 99 c. 89 and 94 d. 90 and 94 QUESTION 10 ADT is called as Abstract because a. Implementation details are hidden b. It is collection of different data types c. Implementation details are not hidden d. It is completely independent data type