Well, using my limited knowledge, "cleaving" means to chop, break in half, split, etc. Twain means twice. So, perhaps it's like "you've broke my heart in half", something along those lines? hopefully this helps you.
I think the correct answer from the choices listed above is option C. Communication is considered ethical if it is relevant to the topic of discussion. Good communication is the use of the proper words for the given topic. Hope this answers the question.
I’m pretty sure it’s D because a and b are definitely not correct and I’m pretty sure it’s not c
