As new firms enter a decreasing-cost industry

A) the LRAC curve shifts down.
B) the LRAC curve shifts up.
C) the position of the LRAC curve doesn't change, but firms move down their LRAC curve.
D) the position of the LRAC curve doesn't change, but firms move up their LRAC curve.

Decreasing-Cost Industry

An industry in which the costs of production decrease as the industry grows and output increases.

LRAC Curve

Stands for Long-Run Average Cost curve, which shows the lowest average cost at which a firm can produce any given level of output in the long term when all inputs are variable.