11. Which of the following explains the importance of conducting a market survey? a. Gain customers' feedback b. Understand customers' preference to procure products C. Assist in making important decisions in enhancing a product d. All of the above 12. What is the process of enhancing metal products that uses acid to produce corrosive action? a. staining b. engraving c. etching d. texturing 13. Which process of enhancing finished product using sharp object to create designs on wood? a. hand carving b. flocking c. etching d. texturing 14. What do you call a material that is plastic in form, available in water and oil-based options used as finishing for products? a. varnish b. polyurethane C. shellac d. lacquer 15. What should be given emphasis in innovating or adding of accessories to a product? a. the size of the product c. artist's style b. customers' preference d. number of products​