In the late 1700s, the cumberland gap made it easier for settlers to
cross the appalachian mountains.
travel down the atlantic coast.
explore the southern mississippi river.
fight the seminole in florida.

Option A is the right answer, that in the late 1700s, the Cumberland gap made it easier for settlers to Cross the Appalachian Mountains.

Situated near the crossroads of Kentucky, Virginia, and Tennessee, Cumberland Gap is a slender pass through the long range of the Cumberland in the Appalachian Mountains. This land came into notice of pioneers in 1750 by Thomas Walker( a Virginian Explorer and Physician). Therefore, this route was adopted by a team of frontiersmen directed by Daniel Boone, making it convenient for immigrants who used it for the journey towards the Western borders of Tennessee and Kentucky.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: