When reading the long-run cost curve from left to right, which is the correct order of economies of scale as reflected in the curve?
1) Constant returns-to-scale, diseconomies of scale, economies of scale
2) Constant returns-to-scale, economies of scale, diseconomies of scale
3) Diseconomies of scale, constant returns-to-scale, economies of Scale
4) Economies of scale, constant returns-to-scale, diseconomies of scale