Consider the chart to the right. What is the greatest single expense category? To the Federal Spending 2011-2020 Totals nearest degree, what is the central angle of that category's sector? Social Security 19% Net Interest 14% Medicare & Medicaid 23% Other 14% Choose the correct answer below and fill in the answer box to complete your choice. Defense 15% (Round to the nearest degree as needed.) Non-Defense Other 15% O A. Social Security O B. Defense O C. Net Interest O D. Medicare & Medicaid