I believe the answer is A but i could be wrong, during the Civil war it made it easier for them to speak and talk to each other during that time sending goods and messages across the united states.
Hope this helps.
Led to an outburst in education, more books and writings could be published quicker, it also led to more Children and adults becoming more literate. If you gave me more context like a place and year, I could help you more!
c)free-soilers and slavery advocates
Answer:
B. It is the cause of the war
right after the assassination declarations of war are proclaimed
E. None of the Above
Serbia was blamed