Answer:
Can explain what you want the Q is not clear
The answer is (C), becuse the reader does not now was is threatening the characters lives. In the other answers it told "it" was thereatening their lifes. This is why (c) has the sentence fragment.
Answer:
MARS
Explanation:
I'm in my space ship landing on a planet then I see someone waving to me then I think that I'm not alone then I come out of my space ship and ask him who are you then he says that I work for SpaceX then he says let me show you around so then we walked to big city just like on earth then I see a huge building which has space x on it then I asked the person who manages the whole place then he replied Elon musk is the president of the whole planet then you go back home and tell everyone about it