Suppose that the shadow price for assembly time is $5 per hour. The allowable increase for the assembly time constraint is 40 hours, and the allowable decrease is 30 hours. If all assembly hours were used under the initial LP solution and workers normally make $4 per hour but can work overtime for $6 per hour, what should management do?

A. Decrease availability hours for assembly time by 5 hours

B. Decrease available hours for assembly time by 30 hours

C. Increase available hours for assembly time by 40 hours

D. Increase available hours for assembly time by 5 hours

E. Do not change available hours for assembly time