D. The most important skill in learning how to write a research paper is, knowing how to plan before you write: Planning a research paper involvesten key steps such as searching a topic, surveying the literature, drafting research questions, compiling sources, citing the sources, outlining, formulating the research roles, collecting evidence and drawing conclusions.

Answer B is the perfect answer. Before writing any essay, the writer must be a good planner. Planning helps the writer not to exceed the number of specified words. It also helps the writer to write an organized essay. An organized essay is easier to understand and also takes less time to write.