What is the total cost associated with producing eight units of the control variable, Q (identify point B in the table)?Control variableTotal BenefitsTotal CostsNet BenefitsMarginal BenefitMarginal CostMarginal Net BenefitQB(Q)C(Q)N(Q)MB(Q)MC(Q)MNB(Q)0000---190010080090010080021,700300C80020060032,4006001,800700E4004A1,0002,00060040020053,5001,5002,000500500F63,9002,1001,800D600-20074,2002,8001,400300700-40084,400B800200800-60094,5004,5000100900-800104,5005,500-1,00001,000-1,000

A. 3,800
B. 4,200
C. 3,000
D. 3,600


Answer: D

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