b. Based on FIGURE Q2b, calculate the average selling price for all companies from 12 pm to 1 pm, if the number of units sold is P, where Pis between 150 units to 500 units. Based on your chosen value of P, determine which company would be of your first choice to invest in. Justify your answer. 24 22 Z 20 Sales rate (RM/min) 18 16 14 12 10 8 6 4 2 0 0 10 20 30 40 50 60 Time (min) -A-B-C-D-E FIGURE Q2b [15 marks)