The Figure Above Shows Some of a Firm's Cost Curves

question 261

Multiple Choice

The figure above shows some of a firm's cost curves.
-A firm's utility bill is a variable cost.If the cost of utilities increases,then in the figure above ________ upward.

• A) only curve A shifts
• B) only curve B shifts
• C) only curve C shifts
• D) both curves A and C shift
• E) both curves B and C shift

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