Suppose a cost-benefit model is given by 6.2x 100 -x where x is a number of percent and y is the cost, in thousands of dollars, of removing x percent of a given pollutant. Complete parts a through c. a. Find the cost of removing each percent of pollutants 50%, 70%, 80%, 90%, 95%; 98%, 99% 50% 0% 80% 90% y 95% 98% y = 99% (Type an integer or decimal rounded to two decimal places as needed ) b. Is it possible, according to this function, to remove all the pollutant? Yes c. Graph the function, Choose the correct graph below. O D. OA OB. OC. O 120 -120 120 120 120 120