The correct answer is C. week is.
The reason why this is incorrect is because there has to be a comma between the words week and is. The clause 'who is visiting the US this week' is an appositive clause, which means that it has to be set off from the rest of the sentence using commas. Hope this helps!
Answer: informal and casual.
Explanation:
Our online behaviour is part of our daily life. There are plenty of uses for the internet nowadays. Internet users have an online identity. According to the usage they give to the internet and especially the social networks they might have a formal or informal and casual identity. Someone who uses the internet for social reason only usually have an informal and casual identity because it helps to interact with other people.
Answer:
They are always being updated?
Explanation:
Isolation means isolated from others, therefore your away from others, or disclosed.