The ABC Corporation decreases all of its inputs by 12 percent and finds that its output falls by only 8 percent. This means that initially it was producing Multiple Choice in the range of diseconomies of scale. in the range of economies of scale. where AP is less than MP. at the point of minimum efficient scale.

In the range of diseconomies of scale

Explanation:

Economies of scale refers to a concept whereby a firm accrues cost advantage owing to it's increased scale of production.

Economies of scale points towards efficient production.

Conversely, Diseconomies of scale refers to the phase wherein a firm experiences cost disadvantages owing to increase in organizational operations and output level.

Reasons for operation of this phase being, lack of motivation and proper coordination between employees since there are too many employees and management gets difficult.

In the given case, as the corporation decreased it's inputs, the output fell less proportionately which means the firm was earlier operating in the phase of diseconomies of scale.