Why Are Deductions of Individual Taxpayers Broken Down into These

Multiple Choice

Why are deductions of individual taxpayers broken down into these two groups: (1) deductions for A.G.I.and (2) deductions from A.G.I.?

A) To separate business and nonbusiness deductions
B) To distinguish self-employment expenses from employee expenses
C) To provide for simplification and reduce the number of taxpayers who itemize their deductions
D) To distinguish corporate taxpayers from non-corporate taxpayers