The discussion technique that Jennifer uses most clearly in this conversation is, challenging assumptions.
When we want to give a discussion a different approach, we use this technique through What if... questions, it is necessary to present another alternative to respond to things that we already established.
The other techniques are very different from this one, promoting participation would be mostly used by a moderator not a regular participant in the conversation, MAking an objective is to land the discussion into something real, and Asking for rhetorical questions does expect any kind of answer which we do have in here, therefore the other three options are incorrect.
Diction and figurative language can impact an author's tone and characterization because they can make the story seem more real if everything is working well together, or they can keep the reader from connecting to the work if the choice of words and use of language clashes with the tone the author is trying to convey.
I don't exactly get what you are saying, so I'm practically guessing. If you restate I will gladly help you.
Thrift store is your answer
The correct answer is D.
The teacher clearly dislikes his students; he describes their work as slovenly and says that he is sick and tired of dealing with them.
He explains that he will not take the last of his energy and waste it on them, since they are so indifferent. While he does not like them, he does not yet hate them. He says if he were to give them the last of his energy, however, he would end up hating them. For now, though, he just dislikes them and waits for the bell.