QUESTIONS Which of the following CANNOT be subtracted from gross income as a deduction? a contributions to health savings accounts ob reimbursed employee expenses c.contributions to retirement savings accounts od interest paid on student loans QUESTION 6 Which item was the largest tax expenditure of the federal government in 2018? a exclusion of pension contributions and earnings, including 401(k) plans b.deductibility of home mortgage interest c.exclusion of employer contributions for medical insurance from taxable income d. deductibility of state and local taxes