A semiconductor manufacturing firm is planning to expand its productive capacity. Its long-run average cost (LRACLRACLRAC) curve is shown below:

Which of the following describes a transition or position on the graph that is directly caused by the firm experiencing managerial diseconomies of scale as it expands its output?
An expansion of output beyond Point BBB towards Point CCC, where coordination issues and bureaucratic complexity lead to higher long-run average costs.
A movement along the curve from Point AAA to Point BBB, driven by increased specialization of labor and bulk-purchasing discounts on raw materials.
A downward shift of the entire LRACLRACLRAC curve, resulting from industry-wide improvements in local transport infrastructure.
A movement along a short-run average cost curve tangent to Point AAA due to the law of diminishing marginal returns.