Barley Company Makes Four Products in a Single Facility The Milling Machines Are Potentially a Constraint in the Production

Barley Company makes four products in a single facility. Data concerning these products appear below:
$\begin{array}{|l|r|r|r|r|}\hline&&\text { Product }\\\hline & \mathbf{A} & \mathbf{B} & \mathbf{C} & \mathbf{D} \\\hline \text { Selling Price per Unit } & \$ 35.30 & \$ 30.20 & \$ 20.80 & \$ 26.00 \\\hline \text { Variable Manufacturing Cost per Unit } & \$ 16.50 & \$ 15.80 & \$ 7.90 & \$ 8.50 \\\hline \text { Variable Selling Cost per Unit } & \$ 3.80 & \$ 1.60 & \$ 1.90 & \$ 3.30 \\\hline \text { Milling Machine Minutes per Unit } & 3.20 & 1.80 & 2.20 & 2.50 \\\hline \text { Monthly Deman in Units } & 4,000 & 1,000 & 3,000 & 1,000 \\\hline\end{array}$
The milling machines are potentially a constraint in the production facility. A total of 22,600 minutes are available per month on these machines.
-What maximum amount (rounded to the nearest whole cent) should the company be willing to pay for one additional minute of milling machine time if the company has made the best use of the existing milling machine capacity?

A) $0.
B) $4.55.
C) $11.00.
D) $15.00.