A manufacturer makes two types of rubber, Butadieneand Polyisoprene.The plant has two machines, Machine-1 and Machine-2, which are used to make the rubber strips. Manufacturing one strip of Butadiene requires 2.75 hours on Machine-1 and 3 hours on Machine-2.Processing one strip of Polyisoprene, takes 3.5 hours on Machine-1 and 4 hours on Machine-2.Machine-1 is available 180 hours per month, and Machine-2 is available 200 hours per month. Formulate an all-integer mathematical model that will determine how many units of each type of rubber should be produced to maximize profits if the profit contributions of Butadiene and Polyisoprene are $20 and $26, respectively.If B = number of units of Butadieneproduced and P = number of units of Polyisopreneproduced, which of the following constraints should be included in the model?

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