Suppose the Marginal Cost Curve in the Short Run First

Multiple Choice

Suppose the marginal cost curve in the short run first decreases and then increases.If marginal cost is decreasing,_____ must be _____ and _____ must be _____.

A) marginal product;increasing;average fixed cost;zero
B) average variable cost;decreasing;average fixed cost;increasing
C) average total cost;increasing;marginal cost;decreasing
D) marginal product;increasing;average variable cost;decreasing