Question 41 Use the graph below to answer the following question: ATCA ATC ATCO ATCO Average coul Idollon per unit 20 40 60 60 100 120 Quartey tort per day! The average total cost curves for plants A, B. C and D are shown in the attached figure Which plant is best to use to produce 80 unite per day? (Le which plant would minimize the coul per unit - the ATC?) O plant A plant B O plant C O plant D