Answer:
Mighty and grand ocean of wonderous emotion. Thou hath a key to a world in which the riot of business may subside and the depth of the navy blue consume, how righteous and elegant it supports itself on the sand slowly extending outwardly in stretch. There alone but all grand it stands but allows life to vicariously flow through and wish to never be dry again.
Tweak it if you want you get the idea.
The correct answer is letter C. It is an effect caused by some factors that are not clearly stated in this sentence. Greenhouse gases would probably be the effect in the sentence that the writer is probably talking about. The necessary causes are also probably highlighted but they are not given in the question. Assuming that you are looking for this thought.
Intelligent, Wasn't that bright is sarcasm, like, Wow that was smart (aka stupid)
MAY BE WRONG, ALSO LEARNING MYSELF