I believe it is the last and second one.
Answer:
communication
Explanation:
due to writing we are able to communicate fluently with one another
Answer: it allows people to publicly voice their opinions. It plays an important role in positively influencing government policies.
New inventions and technology change lives because they simplify and ease the work that humans have to do. They make life easier and simpler
The answer to your question is,
C. Breaking up their hoplite formations with cavalry.
-Mabel <3
