15. The following is an excerpt from an executiveorder issued by a president of the UnitedStates."That on the first day of January, in the yearof our Lord one thousand eight hundred andsixty-three, all persons held as slaves withinany State or designated part of a State, thepeople whereof shall then be in rebellionagainst the United States, shall be then,thenceforward, and forever free; and theExecutive Government of the United States,including the military and naval authoritythereof, will recognize and maintain the freedom of such persons, and will do no act oracts to repress such persons, or any of them,in any efforts they may make for their actualfreedom."Who was the author of this executive order?a. George Washingtonb. Abraham Lincolnc. Thomas Jeffersond. James Madison

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