can you give me an explanation?

Solve the linear programming problem. Maximize P = 20x+ 65y Subjectto x+2y s 12 x,y 2 0 What is the maximum value of P? Select the correct choice below and, if necessary, ll in the answer box to complete your choice. 0 A. P = D (Simplify your answer. Type an integer or a fraction.) 0 B. There is no maximum value of P. What are the coordinates of the comer point where the maximum value of P occurs? Select the correct choice below and, if necessary, ll in the answer box to complete your choice. O A. The coordinates are |:. (Type an ordered pair.) 0 B. There is no maximum value of P