Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions :
Figure: Income and Leisure Opportunities
-(Figure: Income and Leisure Opportunities) The figure Income and Leisure Opportunities refers to Keisha when she has 100 hours per week for working or leisure.There are two time allocation lines,one for a $10 hourly wage rate and the other for a $20 hourly wage rate.Keisha's optimal choice is point A when the wage is $10,and her optimal choice is point C when the wage is $20.As the amount she earns increases from $10 to $20 per hour,Keisha will work _____ hours because of the income effect.

A) 10 fewer
B) 15 more
C) 25 fewer
D) 50 more