BizBuyer.com, ITRadar.com, and Onvia.com are all Internet companies that are called "go-betweens." If a business needs bids on installing a wastewater treatment center, it can visit one of these sites, list its requirements, and ask for bids. Since the purpose of these websites is to put buyer and sellers together so that a sale can be made, these three websites can be categorized as:

Question

Quizplus · Accepted Answer

These websites act as intermediaries between buyers and sellers, connecting them for a potential sale, which is the definition of a broker. Therefore, the best choice is D.

BizBuyerCom, ITRadar