Yes, because that’s your friend and you should always try your best to be truthful and your friend did ask for your opinion. You should tell your friend how you feel, but let her know that you don’t know their bf/gf that well so your observations could be totally wrong.
Since diction in writing refers to the choice of words, the answer is A - strategic word choice used in persuasive rhetoric.
No sorry what I will suggest is to highlight the key words
