The most accurate statement about Proposals given here is :
A. Most internal proposals are written in response to Requests for Proposals (RFPs)
Explanation:
A Request for Proposal is the standard way of dealing in many firms where the work is carried forward through and kept in check through different sort of firm proposals.
It is usually not a practice in the business world that there are unsolicited proposals received by a firm and if there are they are usually not heeded enough to make much difference as far as the firm is concerned.
RFPs are thus usually found to be necessary for any such dealings to be made possible.
