Answer:
It was good that America intervened, it's the main factor that ended World War 1. It was internationally and domestically good because if Germany were to win, it could cause future problems for the USA and all of Europe.
The detrimental was the signing of the Treaty of Versailles, which imposed harsh treaties on Germany which led to World War 2. That war affected everyone around the world.
18th century is when it began
If i had to answer this question i would go with letter b for a answer
The answer is slave. The Antebellum Era, likewise roughly
denoted to as the Plantation era, was an era in
the past of the Southern United States, from the late 18th period up until the beginning
of the American Civil War in 1861, manifested by the economic development of
the South grounded on slave-driven plantation agribusiness. The revivalism that
spread thru the country throughout the antebellum era also contributed increase
to several social reform movements like abolitionism (sought to end
slavery).
Political cultural and economic gaps