If average total cost is declining, then:
A. marginal cost must be greater than average total cost.
B. the average fixed cost curve must lie above the average variable cost curve.
C. marginal cost must be less than average total cost.
D. total cost must also be declining.

If average total cost is declining, then:
A. marginal cost must be greater than average total cost.
B. the average fixed cost curve must lie above the average variable cost curve.
C.

marginal cost must be less than average total cost.
D. total cost must also be declining.

If average total cost is declining, then: C. marginal cost must be less than average total cost.

If average total cost is declining, then: A. marginal cost must be greater than average total cost. B. the average fixed cost curve must lie above the average variable cost curve. C. marginal cost must be less than average total cost. D. total cost must also be declining.

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