Answer:
visible light I know for a fact that is the answer
Yes, Old mayor is the one who says the statement man is the only real enemy we have and Remove Man from the scene, and the root cause of hunger and overwork is abolished forever. The novels reveals about real enemy is that whatever goes upon two legs is an enemy. The answer in this question is yes, it is true that the old mayor say the statement.
Need to write a complaint letter!
The only conjunction in this sentence is C) but.
All of the other options are prepositions, not conjunctions.