Which of these mountain ranges represents the Appalachian Mountains? A) 1
B) 2
C) 3
D) 4

Oh you haven't uploaded options!!

I think d is the answer

Explanation:

The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. They once reached elevations similar to those of the Alps and the Rocky Mountains before experiencing natural erosion.

b)

it created free trade throughout the colonial territories.

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.