Answer:
The answer is C. Your personal feelings about that topic.
A line of reasoning that presents the opposite side of the author's argument is called (I believe) a counterargument. It states exactly the different thing from what you have first stated.
It means; hurry,hurry,something should be done now,advance without any delay
This passage uses imagery of sight - it explains everything that the narrator sees: I saw the water, I saw only my round refection, colors and lights need vision to see and then reflecting anything I could see around me.
The last sentence the narrator can only see what's around them and can no longer see anything reflected through the water (since the water shook)
