Toothpaste manufacturers understand that consumers have different needs when it comes to toothpaste (i.e., teeth whitening, sensitive teeth, breath freshening, and tartar control). Knowing that, they have divided the market based on these various needs and developed toothpaste to accommodate each group. By doing so, these toothpaste manufacturers are involved in

a. a situation analysis.
b. market segmentation.
c. product placement.
d. market development.
e. diversification.