Write the next sentence in the following story.

How to not be rude
Think before you speak.
So many social errors could be avoided if only more thought were involved. A truly gifted conversationalist will always try to filter what he says before he finally says it.

Pick from: (A). Learn from the experiences of others to develop thought patterns, but if you speak harshly to someone you would not say anything about them. Children, for example, are often dismissive of others because they disagree with their mother or father.. (B). Therefore, it's important to truly pay attention to the body language and facial expressions the speaker makes when he makes his points. Whether it's seated or by the window, try to focus only on what your chosen english speaker is saying.. (C). It might be two to three people around and you are likely to accidently speak over them and not respond. When you're on social media, try to keep your mind free for nothing.. (D). While thinking about everything you're going to say may sound exhausting to some, it doesn't require a lot of brainpower. Really, all you'll usually need is a split-second to figure whether something you say might negatively affect someone around you... The answer should be
(D).