Form 1099, Form 1040, W-2, and W-4 provide the employer with tax information about the employee. Which statement correctly describes the purpose of these forms?
1) Form 1099 shows income earned by sources other than primary employment.
2) Form 1040 summarizes wages and salaries that the employee earned that year.
3) W-2 summarizes income and deductions for the year.
4) W-4 provides the employer with the employee's social security number.
