What best describes an Unsolicited Proposal?

An unsolicited proposal is best characterized by its nature of being submitted without a formal request from the recipient. This means it's presented in anticipation of potential interest or need from the audience. The idea behind an unsolicited proposal is to proactively introduce a project or solution that the writer believes will benefit the reader, even though the reader did not specifically ask for it.

This type of proposal often aims to persuade the recipient to consider a new idea, project, or service that they might not have previously considered. It often includes persuasive elements intended to demonstrate value and relevance to the recipient's goals or challenges.

In contrast, responses that describe a proposal written on request refer specifically to solicited proposals, which are tailored to a specific request. A proposal that combines main points persuasively would not solely define an unsolicited proposal since persuasion is a common element in many types of proposals. Lastly, a proposal summarizing research findings is more specific to the documentation or communication of research rather than the anticipation of the reader's interest.