a) Use pseudocode to describe the algorithm that puts the first four terms of a list of real numbers of arbitrary length in increasing order using the insertion sort.________________b) Show that this algorithm has time complexity O(1) in terms of the number of comparisons used.

SolutionStep 1a)In this problem, we have to write the pseudocode to describe the algorithm for sorting the first four-term by using the insertion sort.Step 2Pseudo Code for sort the first four item in a list Using Insertion Sort.Insertion_sort (num1 , num2, num3, ………… set of integers) Now, start the loop For (index_1 = 1 ; index < 4 ; index++) Assume the temporary variable we can interchange the position of the elementTemp = element at ith position Now, initialize the another index index_2 for comparing the value index_2 = index_1 - 1Now, start the another loop While (temp < element at index_2 position && index_2 > = 0(This condition is required because the index_2 goes to...