The answer is their. Their is when something belongs to them.
They're: They are
There: Over THERE
Their: belongs to someone
Answer is D
The stories like “A Sound of Thunder and Nethergrave” will make you understand thT are wonderful pieces of science fiction. Both stories take you on a journey. One story takes you through the past and the other takes you through a virtual world. Of the both stories I think that “A Sound of Thunder”was a better story because it had a clearer story line then the other.
There is no passage to click on. If you add a link In the comments I can help you out though!
I don't entirely know, but I think that the answer might be D...