Which number is A equal to? A/ (Please enter a numercial value. For example, to enter "three thousand" you need to type in "3000") Control Variable 0 1 2 23 3 4 5 Total Benefits 0 800 A 2100 2400 2500 Total Costs 0 100 300 700 B 2300 Net Benefits 0 C 1200 1400 1100 200 Marginal Marginal Benefit Cost 0 0 800 700 600 300 D 100 200 E 600 1000 Marginal Net Benefit 0 F 500 200 -300 -900