4) A manufacturing business has four different departments involved in producing each unit of its product. Maximum daily production capacities of each are: Department A - 100 units; Department B - 135 units; Department C - 95 units, and Department D - 110 units. A consultant has suggested some alternatives to increase output capacities as follows:

Alternative A - increase Department B's output to 200 units per day.

Alternative B - increase Department C's output to 120 units per day.

Alternative C - increase both Department A's and Department C's outputs to 110 units per day.

Alternative D - increase Department D's output to 300 units per day.

Assuming the costs of each alternative are similar and that only one can be chosen, which alternative would yield the best results for the business?