Lucy and Max,ages 28 and 30,have Earned Income of $30,400

Lucy and Max,ages 28 and 30,have earned income of $30,400 and adjusted gross income of $29,500,500.They spent $4,200 on child care for their young son so that they could both work part time and finish their college degrees.Which of the following tax credits could reduce their taxes?

A) Dependent care credit
B) Earned income credit
C) Both dependent care credit and earned income credit
D) Neither dependent care credit nor earned income credit