Use the Figure Costs for a Firm

. Use the figure Costs for a Firm. Which prices in this graph make this firm willing to produce in the short run and in the long run?
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Figure: Costs for a Firm

A) $50 in the short run and $60 in the long run
B) $80 in the short run and $60 in the long run
C) $50 in the short run and $80 in the long run
D) $60 in the short run and $70 in the long run