help for part b please!

Question 3 (40 marks): Use Python for this question A trucking company has to decide on the number of small, medium and large trucks it will operate to deliver agriculture produce. Due to different considerations, it wants the fleet to include exactly 70 trucks. Moreover, the fleet manager has decided that at least 20% of its trucks will be large. The delivery capacity of small, medium and large trucks is 3, 5 and 8 tons of produce, respectively. The company wants to ensure that it can deliver at least 350 tons at any given time. In the following table, the daily cost (in dollars), the pollution rating and the safety rating of the three truck types is given. The pollution rating is on a scale of 1 to 10 where 1 reflects the lowest levels of pollution and 10 reflects the least environmentally friendly score. The safety rating is also on a scale of 1 to 10 with 10 being the score for the safest truck. Truck Cost per day Safety score Large Medium Small $650 $500 $250 Pollution rating 8 5 7 9 8 6 a. Find the truck fleet that minimizes costs. What is the cost, the mean pollution rating and the mean safety score for this fleet? b. Find the truck fleet that minimizes the mean pollution rating. What is the cost, the mean pollution rating and the mean safety score for this fleet? c. Find the truck fleet that maximizes the mean safety score. What is the cost, the mean pollution rating and the mean safety score for this fleet? d. Formulate a goal programming model with a MINIMAX objective function. Assume that safety is twice as important as both costs and pollution. e. Solve problem (d) using Python. Explain your results and provide a screenshot of your code