Final answer:
A government agency is the most likely to send out a bid package among the given options, due to their structured procurement processes to ensure transparency and responsible spending of tax dollars.
Step-by-step explanation:
A bid package is often sent by entities looking to procure goods or services through a formal bid process. Out of the listed options, a government agency is most likely to send out a bid package. Government agencies generally have structured procurement processes in place to ensure that they are obtaining services or goods through fair and competitive bidding. This is part of their accountability to the public, as they utilize tax dollars and are subject to regulations designed to ensure transparent and responsible spending.
Non-profit organizations, private companies, and educational institutions may also send bid packages, but they are more typically associated with different contexts. Non-profits might solicit bids for service projects, private companies for supply contracts, and educational institutions for construction or educational materials, depending on individual needs and procurement policies.