Tony is a whiz in the kitchen. Not only does he make great food but he has invented about a dozen time$-$saving kitchen gadgets along the way. These are all home$-$made inventions made either by using new materials or by modifying existing gadgets to work in new, better ways. He has made duplicate gadgets for friends and some say they use the gadget every day. Tony quit his construction job to concentrate on his kitchen gadgets$-$he started his own company, Kitchen Helpers.

Han's company produces men's shoes. His closest competitor released their new styles last week so Han searched online to gauge the customer response. Han is performing

observation.

secondary research.

primary research.

ethnographic research.