8. Use the incremental analysis to find the Economics efficiency in the following production table. Output (Q) Net Revenue Marginal Amount of Total cost of Marginal Revenue Labor Labor cost of Labor 0 0 0 0 10 200 1 100 100 30 600 400 2 250 150 60 1100 500 3 600 350 80 1300 200 4 1000 400 90 1600 300 5 1400 400 200 A. employing 1" Labor B. employing 2nd labor C. employing 3rd labor D. employing 4th labor E. employing 5th labor