Assume That at the Wage Rate of $10 Per Hour

Assume that at the wage rate of $10 per hour, a firm is hiring 100 hours of labour per week. If the wage elasticity of demand is -1.2, how many hours of labour will the firm shed if the wage increases by $2 per hour?

A) 12 hours per week
B) 24 hours per week
C) 5 hours per week
D) 36 hours per week
E) 20 hours per week