Answer:
The correct answer is option A. F
Step-by-step explanation:
Formal proposals tend to be longer than informal ones due to their structure and the purpose that they will be given. They usually include title, description, introduction, and development of the proposal, among other things.
Informal proposals can be shorter and contain little information without the need to elaborate much more. An example of an informal proposal could be reflected in a memo.
Given this information we can say that the correct answer is option A.