Mr. and Mrs. Kigalis AGI (earned income) was $14,010. Their federal income tax withholding was $830. They had no itemized deductions and two dependent children, ages 18 and 19. Required: If Mr. and Mrs. Kigali are entitled to a $4,748 earned income credit, compute their income tax refund. Assume the taxable year is 2021. Use Standard Deduction Table. Tax refund