I am not perfect at this but I think it would be C. A is comparing the price of a cruise to the price of an island, B - the either and maybe do not flow together, and in D groomed and fed are in past tense and water and clean are present.
Because this helps you to stay organized. It helps to keep up on track of things when writing a research paper. Without mapping (planning, graphing, etc.) you won't have a straight research. You want to keep everything in order, to where it's all nice and neat, so you will know how to put things in order or whatever. I hope I helped love!
Answer: into the wreck
Explanation: into is the preposition, and "the wreck" combined makes this a prepositional statement.
Is this supposed to be a story ?