Question

How much of the federal government income comes from individual income tax?
17%
27%
47%
77%

Answer 1

The three main sources of federal tax revenue are individual income taxes, payroll taxes, and corporate income taxes; other sources of tax revenue include excise taxes, the estate tax, and other taxes and fees. Almost half of all federal revenue (about 46 percent) comes from individual income.
http://www.cbpp.org/research/policy-basics-where-do-federal-tax-revenues-come-from
So the answer is C.