Refer to problem 1.13. The pay will be $8 per hour for employees. Charles lacket can also improve the yield by purchasing a new blender. The new blender will mean an increase in his investment .This added investment has a cost of $100 per month, but will achieve the same output (increase to 1,875) as the change in labour hours. What is a better decision? A) Show the productivity change, in loaves per dollar, with an increase in labour cost (from 640 to 800) B) Show the new productivity, in loaves per dollar, with only an increase in investment ($100 per month more). C) Show the % productivity change for labour and investment.