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Wage rate [dollars per hour] 0 200 400 600 800 1,000 Labour [hours] Figure 18.3.2 79) Refer to Figure 18.3.2. This gure illustrates a monopsonist in the labour market. The prot-maximizing wage rate is and the quantity of labour hired is A) $2 per hour; 150 hours. B) $4 per hour; 400 hours C) $7 per hour; 600 hours D) $9 per hour; 400 hours E) $4 per hour; 800 hours