My english teacher wants me to "Explain how specific rhetorical technique is used to advance the purpose." Can someone please tell me what that means?

I believe that it is asking what forms of rhetoric are used to get the authors points across. Let me use an example. if i was to try to get you to adopt a dog and say “this dog may suffer without a forever home.” that is an example of using emotions (pathos) to try and make you feel guilty if you don’t get the dog. I think you have to find specific examples of those rhetorical devices used and explain them in the context of the passage you are reading.