What is the best definition of "income tax"?

Income tax refers to annual taxes levied by the federal government and most state governments on individual and business income. By law, businesses and individuals must file federal and state income tax returns every year to determine whether they owe taxes.

Explanation:

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.