Dave and His Team Are Creating a Proposal to Recommend

Dave and his team are creating a proposal to recommend to their supervisor that the company's database should be redesigned.
-Dave is in the process of determining how to state the opportunity for capturing additional information and more efficient data processing that this redesign will present. He also wants to explain how the database that his team proposes will be different from their current one. He is planning out the details as to how the new database will be created and rolled out, as well as how much the development, hardware and software, and training will cost. Dave is engaged in which of the following aspects of the composing stage?

A) choosing the best medium for his proposal
B) deciding what content must be included in his proposal
C) determining how his proposal should best be organized
D) determining the appropriate writing style for his proposal
E) determining the purpose of his proposal