Answer:
D) A recent study of surgeons found that doctors who played video games were a lot faster at performing difficult operations.
Explanation:
Answer: The time traveller has been driven insane by visiting other times
The Time Traveller has returned to his own time, but can barely put a sentence together. It seems that he is struggling with his words and his thoughts and cannot tell if all of his adventures really happened or if he might have just imagined them. His travel is confirmed though, when they walk through the house and find the actual time machine.
Explanation:
Exclamatory because it has an exclamation point
Not 100% sure but this is my opinion
B). Metaphor
===============================
HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!