Which of the following are prepared at the request of external parties?

A) Sales proposals
B) Solicited proposals
C) Unsolicited proposals
D) Internal proposals
E) External proposals

Solicited Proposals

Solicited proposals are requests submitted in response to a customer's explicit request for a proposal, typically following specified guidelines.

Unsolicited Proposals

Proposals submitted without a specific request, often aiming to pitch new ideas or solutions to potential clients or partners.

External Proposals

are suggestions or plans submitted from outside an organization to provide solutions, services, or collaboration opportunities.