Concept:A factor is an agent who holds goods in their possession and sells them on behalf of the principal.Explanation:Factors receive goods from the owner and are authorized to keep them until a buyer is found.They sell the goods in their own name without disclosing the principal.For this service, they earn a commission known as factorage.Distributors buy and resell goods, brokers only arrange deals, and auctioneers sell by public bidding.Answer:A. factors