Which act of government was specifically required by the U. S. Constitution? O the levying of a federal income tax
the protection of the natural environment
O the support of struggling businesses
O the establishment of an army and a navy

O the levying of a federal income tax

Explanation:

The Sixteenth Amendment passed in 1913 upheld the right of the United States government to charge a federal income tax. It was further supported by the Revenue Act of 1913. This aspect of the United States Constitution states;

"The Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several States, and without regard to any census or enumeration."

This is today found in the Internal Revenue code and Title 26 of the United States Constitution. All citizens of the U.S  are expected to pay the federal income tax.

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]