Telesca Inc., a manufacturer of telescopes, currently produces10,000 units per week. The firm's average cost of production has been declining so far. Labor is the only variable input used in production. The operations research team at this firm reports that the marginal cost of producing 10,000 telescopes is lower than both the average total cost and the average variable cost of production. The team believes that average cost will decrease further if production is increased beyond 10,000 units.