Many phrases could be used here like How " did you" or How " much distance " etc.
B.
"Stay where you are and we will send someone as soon as possible," the police officer had assured him.
Answer:
It would be text-to-self.
Explanation:
He he simply reading a book about a kid, and while he's reading it, he thinks about himself in that situation, as to it happened to him before, so he's thinking about the time he helped his grandparents.
Hope this helped you!