For most consumers, the brand name Benetton brings to mind a retail clothing store that carries many products that bear the Benetton brand. But the Benetton Group also owns a chain of restaurants, several toll roads in Italy, and a telecommunications company. The list of the company's holdings indicates that the company's managers believe in growth through is it.
a. market development.
b. product penetration.
c. diversification.
d. market integration.