The correct option is D.
Twitter is an online news and social networking website, where communication takes place in form of tweets. Tweets can only be 280 characters long.
For those people who are using twitter, a direct message can be used to send a private message to someone about their tweet or other relevant issues. In order to be able to receive direct messages from anyone, one has to has to activate the option of receiving direct messages from anyone.
The Gobi desert is in northern China and southern Mongolia. The two countries the Gobi desert is in is China and Mongolia.
A sentence that can be judged either true or false is called an judgemental sentence
