In my opinion, the correct answer is C. anger. This phrase doesn't give the audience a reason to panic or despair, and it is far too strong to cause mere anticipation. It causes downright anger because, according to the speaker, the injustice continues in spite of all the efforts. This is an appeal to ethos, a very delicate matter that is supposed to engage the listeners, rather than just move them emotionally.
I’d say the answer is A, it plays on fear of new technology
Diction
I think diction has to do the most with the subject of word choice