B. Executive because the president is in the executive department or branch. It could not be administrative because that is not one of the three departments or branches.
The answer to this would be C. The other two would not make sense or fit for the time period. Also c is true, just learned this in history too!
It reduces the per unit fixed cost. As a result of increased production, the fixed cost gets spread over more output than before. It reduces the per unit variable costs. Economies of scale bring down the per unit variable costs.
