Based on the optimal tableau, what is the optimal solution to this linear program?$($b$)$ For each variable, calculate the maximum increase and maximum decreases in objective$$coefficient which will leave the optimal solution unchanged.$($c$)$ For each constraint, calculate the maximum increase and maximum decreases in RHS$$value which will leave the optimal basis unchanged.$($d$)$ For each constraint, say what the value would be of the objective function if the RHS$$value changes by the maximum allowed values.