Which of the Following Is an Example of a Single

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

A) Reebok shoes makes tennis shoes, running shoes, walking shoes, and Weeboks.
B) Reach Toothbrush makes several versions of its toothbrush, which are available in a soft, medium, and hard bristle and a short or normal length head.
C) Johnson's Baby Oil is advertised as a skin softener for babies and as a makeup remover for women.
D) Kellogg's and Post both make bran cereals with raisins.