Mr Adams was hungry and paid for a plate of food which he ordered from Kemi, an online food vendor.

let's tackle these questions!

16. Mr Adams' hunger for food is an example of A. a need. B. an exchange. C. a want. D. a desire.

    The correct option is A. A need is a basic human requirement, such as food, air, water, clothing, and shelter. Hunger is a physiological need.

    $$\boxed{\text{A}}$$

17. Question 17 is not visible in the image provided.

18. A benefit Mr Adams would derive from patronising Kemi is A. convenient shopping. B. increased visibility. C. cordial relationship. D. customer preferential treatment.

    The correct option is A. Kemi is described as an "online food vendor," and a primary benefit of online vendors is the convenience they offer, allowing customers to order food easily from their location.

    $$\boxed{\text{A}}$$

19. Which element of merchandising is involved when Adu, a retail shop employee, makes and provides cushioning for a piece of China-ware purchased by Hannah? A. Labelling B. Packaging C. Branding D. Tagging

    The correct option is B. Packaging involves the activities of designing and producing the container or wrapper for a product. Providing cushioning is a key function of packaging to protect the product.

    $$\boxed{\text{B}}$$

20. The type of sales promotion associated with the first recommendation is A. loyalty schemes. B. flash sales. C. sweepstakes. D. price-off.

    The correct option is D. The first recommendation is to "offer new customers small units of its products to try." This often involves selling these trial units at a reduced price to encourage purchase, which is a form of price-off promotion.

    $$\boxed{\text{D}}$$

21. Question 21 is not visible in the image provided.