I believe the answer is (B) because (A) has an improper use of the colon, and in (C) they put the semi colon after "we" which doesnt make sense because "We had a relaxing lunch we," is not a proper sentence.
Learning natural English is a skill common to any individual living in an English-speaking country. This English is learned through daily contact with people who speak English. With this we can conclude that natural English is learned, by us, since our birth through living with our family. Thus, we can say that this Englishman has an informal, relaxed air and without many rules and guidelines for its use. We can use it talking to our friends, or, in common everyday situations.
Standard English, however, refers to the standard, cultured and grammatically correct way of speaking and writing in English. We can only learn this type of English through classes and reading texts that cover this type of language. It is important to learn it because formal situations, social events, academic events and even living with people in higher status than ours, requires that this type of language be used.
This happened in 1992 - it was the year when the number of Internet host servers reached and broke 1,000,000. The development of the Internet was a slow process, but once it began back in the day, it never stopped advancing and thus we have what we have today.
A successful collaborative discussion is when you are participating actively and responding to people’s thoughts. When one person says something, feel free to chime in and say something about it as well, which could lead to more discussions too!
Clustering is a technique similar to brainstorming, so you just write down some ideas. So, the correct answer is D.