A plant produces polyurethane materials on one of its production lines. In this line, the plant produces 4 different materials for the automotive industry. The sales area has defined the production needs for the following month but the production manager suspected that the plant could not meet all the demand and has to present to sales the production program that would give the highest profits to the company. Searching the finance and production files he found the following data: Pre reactor Reactor Stripping Filtrate Time Product/ Equipment (cycle time in minutes) PH adjustment tank | . 10 3 0 10 2010 5 5 5 150 5 Ic D 5 10 The cost of raw materials for A is $10 per lot, for B $ 5 per lot, for $5 per lot, and for D $ 10 per lot. A's demand is 60 lots a week and the sale price is $ 75 USD per lot, for B 80 lots are required per week and his sale price is $ 72 USD per lot, for C 80 lots are needed per week and its price is $ 45 USD and for D there is a demand for 100 lots per lot and the sale price is $ 38 USD. The financial area reports that the "overhead" of the plant is $ 8,500 USD per week and that each worker receives $ 18 USD per hour of work. The plant has 5 workers assigned to this production unit who work 8 hours a day from Monday to Friday. Can you propose an efficient production program