Answer:
D
Explanation:
After the line, the example has been made already and it was kind of like a slap in the face. It would be most logical, in my opinion, to introduce it a bit more considering how much of a jump there is.
A is not correct as the rest of the passage describes only one thing.
B doesn't quite fit in this as there is no need to describe how long it takes for ice to freeze.
C doesn't make sense as the importance, or ice freezing isn't emphasized in the remainder of the passage.
Best of luck!
