Answer: Thomas Edison
Explanation: The dictionary says it was Thomas Edison who put hello into common usage. He urged the people who used his phone to say "hello" when answering. His rival, Alexander Graham Bell, thought the better word was "ahoy."
The answer is c because when they leave they are pushed and when they are attracted they are pulled.
It was hard to get to city center
the slums had bad air
and it is dangerous to live in
