The Spirit<span> of the </span>Laws<span> (French: De l'esprit des lois, originally spelled De l'esprit des loix; also sometimes translated </span>The Spirit of Laws<span>) is a treatise on political theory, as well as a pioneering work in comparative </span>law<span>, published in 1748 by Charles de Secondat, Baron de Montesquieu.</span>
I'm pretty sure the answer is B, isolationism.
I believe the document is the Emancipation Proclamation, and it was issued by president Abraham Lincoln.