Concept:A feature article is a published media piece that gives factual information about a product or firm.Explanation:The question asks for the term used when facts about a firm's product are published.Feature articles appear in newspapers or magazines and present factual details about a product or company.Merchandizing refers to product display and sales promotion at the point of sale, not publication.Exhibition involves physically showing products at trade fairs or displays.Mass advertising is paid promotion through mass media channels.Only feature articles directly describe the publication of facts about a product.Answer:C. feature articles