Answer: There are formatting issues in the greeting and closing
Explanation: I took this and got it right
He means that the people who are the most dangerous will, in the long run, be the ones that helped you the most. At least, that's what I got from it.
A word to stand on its own would be a word that is a sentence on its own.
Words Like This Are: And, Eat, Play most adjectives. Because if your friend asked you what you wanted to do you would simply say "Play." or "Read." or such thing as your name can be a word to stand on its own. If you meet a new person and they introduce themselves and ask for your name, typically you are to say "Bob." or "John." or whatever you name might be.
Hope it helped.
Sincerely,
xPain