$.$ What is the optimal solution and the cost represented by the objective function?

b$.$ What is the impact on cost if we increase B requirement by $10$ units?

c$.$ What is the impact on cost if we decrease C requirement by $3$ units?

d$.$ What is the impact on cost if we decrease C requirement by $8$ units?

e$.$ It$$s known that we can decrease C requirement by $2$ units at an additional cost of $$2$

per unit. What would be the impact on the objective function value?

f$.$ If the objective function coefficient of T$3$ increases by $$50,$ will the optimal solution

change? What about the value of the objective function?