ऐसा व्यय जो पहले ही किया जा चुका हो और जिसे दोबारा वसूल न किया जा सके, उसे क्या कहते हैं?

Arrange the following cost curves in the order of their minimum point occurrence from left to right as output increases (short run): A. Average Fixed Cost (AFC) B. Average Cost (AC) C. Marginal Cost (MC) D. Average Variable Cost (AVC)

Consider the following statements regarding Short Run Costs: 1. Fixed costs do not change with output. 2. Variable costs increase with output. 3. Total cost is the sum of fixed and variable costs. Which of the statements given above are correct?