Beerco manufactures ale and beer from com, hops, and malt. Currently,  40lb of corn, 30lb of hops, and 40lb of malt are available. A barrel of ale sells for $40 and requires 1lb of com, 1lb of hops, and 2lb of malt. A barrel of beer sells for $50 and requires 2lb of corn, 1lb of hops, and 1lb of malt. Beerco can sell all ale and beer that is produced. To  maximize total sales revenue, Beerco should solve the following 

LP:  x1 : the amount produced from ale and x2 : the amount produced from beer. Solve it using the Lindo program. 

Answer the following questions according to Lindo outputs. 

A) Find the range in which the basic solution will not change for the  selling price of ale.  

B) Find the range for the selling price of beer in which the basic  solution will not change. 

C) Find the range in which the basic solution will not change for the  amount of malt.  

D) What would be the new solution if Beerco had 70kg of malt in  stock?  

E) What would be the new solution if Beerco company sold ale for 20YTL? 

Find the constraints of the problem and the answer to the choices.