You will be given a definition of a task first, then some input of the task.
In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to write a medical research proposal [title] Collect source material and potential project sources. [step] In this initial stage, you will be looking at how you will implement a project and from where you will get relevant data. [title] Develop a plan. <sep> (A) [step] In writing a medical research proposal, experts recommend starting with an abstract that is informed by well-thought-out ideas on comprehensive planning for the research project. This includes proposed methods, overall study design, logistics, a schedule or timeline and other aspects of what you will be doing if the project is approved. (B) [step] Once you have picked out the sources needed to make your type of project the way you intend, begin to research the topic. For instance, maybe you'll get a group project focused on physiology, or maybe you'll graduate from high school and want to work as a research assistant. (C) [step] Start at the top and reach out to the person's department and research partners. Meet with their manager to discuss possible funding trends. (D) [step] Create a list of potential project perspectives, types of research, figure cards, and your main topic (s) to be studying. That way, you can then be fairly specific when it comes to your research.
Output:
A