Last year Sarah earned $20 an hour and worked 30 hours per week.This year she got a raise to $24 an hour and works 40 hours per week.She has a 3 year old and pays $5 an hour for day care.The President has proposed free child care for all 3 and 4 year olds.What effect would this have on Sarah's hours of work and consumption of market goods other than child care?Draw and explain an indifference curve diagram as part of your answer.