I believe it is C. refuting a counterclaim.
I am not sure about the first question, I cannot help you with that one, sorry. :/
However, the second question I know. Ragnarok is A), an apocalyptic prophecy, a Norse prophecy stating when the end of the world will come.
The central idea is the world would be to much if they world wouldn’t have water
I need more information to answer this
The answer would be A. Assets