Answer:
The correct option is C, business plan
Explanation:
Sales proposal is a document sent by a seller to a prospective buyer detailing the nature of the product offered and how the product could serve the interest of the would-be buyer,hence it is a wrong option.
Unsolicited proposal is a proposal sent by a private firm interested in partnering with the government on projects where the proposal was not requested by the government,as a result it is wrong choice as well.
A business plan is document showcasing the aims of objectives of the organization with clear road maps on issues such as what the business is set out to achieve,its target customer and so on
Investment proposal is aimed at bringing to light the potential benefits of a project so as to appeal to financiers.
Grant proposal is a request addressed to the government justifying the need for grant of a subsidy.