Refer to the Following Figure

Multiple Choice

Refer to the following figure:

The demand for dishwashers facing the AllClean Co. is given in the figure above. The firm manufactures dishwashers in two plants. MC₁ and MC₂ are the marginal cost curves for those two plants.
-How should the firm allocate total output between the two plants in order to maximize profit?

A) 10 to plant 1, 40 to plant 2
B) 20 to plant 1, 30 to plant 2
C) 40 to plant 1, 40 to plant 2
D) 20 to plant 1, 60 to plant 2
E) 20 to plant 1, 50 to plant 2