Average costs curves rise with production a. Due to marginal costs being less than average costs b. Due to rising marginal costs c. Due to declining average fixed costs d. Due to rising average fixed costs

Answer: (B) - Due to rising marginal cost

Explanation:

When average cost is rising with production, marginal cost is greater than average cost. Thus, marginal cost rises.

When average cost is declining with production, marginal cost is less than average cost. Thus, marginal cost falls