Indicate the type of sales promotion that a producer might use in each of the following situations and briefly explain your reasons:

a. A firm has developed an improved razor blade and obtained distribution, but customers are not motivated to buy it.

b. A competitor is about to do a test market for a new brand and wants to track sales in test market areas to fine-tune its marketing mix.

c. A big grocery chain won’t stock a firm’s new popcorn-based snack product because it doesn’t think there will be much consumer demand.