Answer:
I think it is B
Explanation:
Southern states that seceded immediately after Lincoln's election in 1860 did so because they had already been planning it in the event of a Republican victory. Their motivation involved what they perceived as a threat to the institution of slavery, which their economy was dependent upon.
Answer:
the 3rd one is right Authority
Answer:
From google:
A serious drawback of telegraph devices was that they lacked quality in communication, which is why when the telephone came about – invented by Alexander Graham Bell in 1876 –
Explanation:
I believe the answer is A
