Oil marketing companies have decided to perform an analysis on crude oil prices for n number of days. The aim is to find the number of consecutive days preceding the present-day [inclusive] when the price of crude oil was not greater than the price on the present-day, for all n days. [3+3=6M] a. Describe a linear time algorithm to solve the above problem using Stack ADT. b. What is the time complexity of your algorithm? Explain the logic using the example given below.