Per Unit Contribution for a New Cooker Goes Down By 5

Multiple Choice

Per unit contribution for a new cooker goes down by $5 \%$ as a salesman tries harder and harder to sell the cooker. For this situation

A) a linear programming model will be appropriate
B) an integer linear programming will be appropriate
C) an integer linear program may be appropriate
D) a linear program will not be appropriate
E) none of the above