The Correct answer is letter D
Answer:
formal tone/formal speech
Explanation:
formal because you don't wanna be using an informal tone (like using slang) in front of your classmates and professor. if you use informal tone, they might think you're not taking the presentation seriously!
I don't think parents, should lie to their children, as for children shouldn't lie to their parents. I personally think it is all equal. But if a parent is specifically lying to their children about problems that don't really relay on them, then maybe it's okay. But if it includes divorce, or death's I think that it is not okay for parent's to lie to their children, unless protecting them, from something.