James and Martha Willard are 67 and 65 years old respectively. The couple received the following income items during 2020: Wages from part-time employment Fully taxable pensions Interest from Liberty Bank & Trust Certificates of Deposit Interest from Cedar County (Iowa) Bond Social Security Benefits What is the taxable amount of their social security benefits? DO NOT USE COMMAS OR DOLLAR SIGNS IN YOUR ANSWER!! $10,000. $50,000 2 $4,000 $2,000 $45.000 IF YOU GET A DECIMAL AMOUNT IN YOUR FINAL ANSWER, ROUND UP THE ANSWER TO THE NEXT WHOLE DOLLAR AMOUNT.