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y Software Consider table 3.1. What is the dollar amount of average variable cost per unit at the production level of 400 units? Production Rent Wages Supplies Tools Total Cost funits) $300 $200 $ 100 $600 100 $300 5410 50 5200 5960 200 $300 $850 $100 5300 $1,350 300 5300 $900 $150 $400 $1,750 400 $300 $1 200 $200 $500 $2,200 500 $300 $1,520 $250 $2,670 600 5300 $1,905 5300 700 $700 $3,205 5300 $2,300 $350 $800 $3,750 Select one: O a. 3 O b. 4 O c5 O d. 6 page