Answer: D.) not requested by the audience
Explanation: An unsolicited proposal simply means a proposal which is not based on request by the audience or the company it is being addressed to. It involves a written application aimed at obtaining a contract or work placement in an agency when such agency or organization without any formal request or call for application by the agency or organization. Unsolicited proposal are usually written in other to inform an agency that the writer is capable of offering solution to a problem within the agency or industry using his or own innovative idea.