Which of the Following Is True About Experience Curve

Which of the following is true about experience curve?

A) Moving down the experience curve forces a firm to increase its cost of creating value.
B) The firm that moves up in the experience curve most rapidly will have a cost advantage vis-à-vis its competitors.
C) Gradually decreasing the volume produced by a single plant as rapidly as possible is one key to progressing downward on the experience curve.
D) Serving a global market from a single location is consistent with moving down the experience curve.