i say the answer is b . If you are kind to people, they will be kind to you in return.
It may be a Hyperbole or Satire. Since sawing someone's leg off is likely to be exaggerated, it may be a Hyperbole.
At the same time, depending on the context of this sentence, it may be said for the purpose of humour, so Satire.
Hyperbole seems more probable in my view. :)
B is certainly the moral answer. When a source is shown to be untrustworthy, citing it only amplifies the problem. It is similar to how fake news stories have become a problem on social media. Often people share them without taking time to confirm they are true.
The answer is c because it connects the sentence