In argumentative you will be given to sides (agree or disagree) of the topic and you have to choose one side. write with the side that will be easy for you but remember choose only one side.Well I hope I helped you
There is more than one conjunction in the sentence, the word but acts as a coordinating conjunction. Also the words not only and but also act as a correlative conjunction.
Let me start with why it isn't C. C is true but it's not more important than what A says. A talks about how Martin and Kennedy agree with their words which is what the question asks.