please help me solve it

Bob Katz and Sally Mander are a married couple with four children. Total wages for 2018 equaled $170,000. Stock which had been purchased six months earlier was sold for a $7000 gain and stock held for three years was sold for a $21,000 gain. Interest income from savings was $100. Itemized deductions totaled $28,000. Bob and Sally qualify for a $4000 tax credit. Going to the tax tables, what is Bob's and Sally's taxable income? $141,100 $145,100 $149,100 $170,100