Answer:
The answer is C
The assembly line made it easier to manufacture which led to a cheaper product.
Answer:
Because the Ohio River flowed westward, it became a convenient means of westward movement by pioneers traveling from western Pennsylvania.
Explanation:
It’s letter c for the answer of this question
Cambodia and Lao--these neighboring countries were the path for the North Vietnamese to reach the southern parts of Vietnam more quickly.
Cambodia and Laos would be the located of the HoChi Minh Trail which was the supply line from the North to the South. Many parts of the trail were underground and difficult to get rid of. The US resorted to air strikes of the two countries which was controversial because they were technically neutral areas.