34. Suppose that the spouse of the primary earner in the household is considering joining the labor force. The spouse cares for two children and, if employed, would earn $20 per hour for 40 hours per week. The total cost of child care would be $10 per hour for 50 (not 40) hours per week. Assume that the marginal tax rate on work is 50%. Assume that child care is NOT tax deductible and that child care at home is NOT imputed and taxed. What is the after-tax, after- child care value of working per week?

a. -$100 b. $0

c. $150 d. $300