Answer: C
Explanation: Whites didn't need slaves in the North becomes soil was usually hard and cold, thus making slavery pointless and ineffective. On the other hand, the South was almost dependent on slaves for it made a huge portion of the South's economy, which made slavery and plantations highly beneficial.
New trade routes and slavery.
Trade plans got them newer items and unfortunately slavey go them their items.
Hope this helps!
I believe the answer is A: the first satellite launched into space.
D many immigrants struggled to speak and understand the English language
