Determine which of Schedules 1 through 3 the taxpayer(s) will file with Form 1040 for each case: a. Abby and Bert are married, file a joint tax return, and have two qualifying children (ages 4 and 8). Their only income is $70,000 of salaries and wages, from which $4,500 of federal income taxes are withheld. They claim the standard deduction and child care credit.