Straker Industries Estimated Its Short-Run Costs Using a U-Shaped Average $A V C = a + b Q + c Q ^ { 2 }$

Multiple Choice

Straker Industries estimated its short-run costs using a U-shaped average variable cost function of the form $A V C = a + b Q + c Q ^ { 2 }$ and obtained the following results.Total fixed cost (TFC) at Straker Industries is $1,000. At Straker Industries,average variable cost (AVC) reaches its minimum value at $________.

A) $24.50
B) $33.60
C) $72.80
D) $121.80