Answer:
the minimum output level where the firm's average total costs are lowest.
Step-by-step explanation:
When we are analyzing a firm's long-run average cost (LRAC) curve, the minimum efficient scale is the lowest point or range on the curve. This means that at this point or range, minimum production costs are achieved. It is supposed to be the point or range at which the firm should be able to maximize its profits, although that doesn't only depend on costs but also on revenues. The point at which profits are maximized is given by the intersection of the marginal revenue curve and the minimum efficient scale.