Larry's Auto Body Repair Shop had revenues that averaged $60,000 per week in April and $50,000 per week in May. During both months, the shop employed five full-time (40 hours/week) workers. In April the firm also had two part-time workers each working 20 hours per week but in May there were no part-time workers. What is the percentage change in labor productivity from April to May for Larry's Auto Body Repair? Select one: O a. None of these answers are correct O b. 10 O c. -20 O d. 19.23 O e. There was no change in productivity