Which of the following is an example of a single product with multiple market segments?

a$.$

Johnson's Baby Oil is advertised as a skin softener for babies and as a makeup remover for women.

b$.$

Reach Toothbrush is available in a soft, medium, and hard bristle for adults and kids.

c$.$

Quaker Oats oatmeal sells both its hot cereals and cold cereals to people of all ages.

d$.$

Kellogg's and Post both make bran cereals with raisins to reach health$-$conscious consumers.

e$.$

Reebok makes tennis shoes, running shoes, walking shoes, and Weeboks.