The text provides three primary strategic approaches $($differentiation$,$ cost$,$ and response$)$ for achieving competitive advantage. Provide an example of each. Support your choices.

Choose the correct example of differentiation and its explanation below.

A$.$ Pizza Hut, as it specializes in cooking traditional Italian pizza.

B$.$ Starbucks, as it provides the best cheap coffees, including canned, ground, fair trade and organic coffees.

C$.$ Pizza Hut, as it deliveres pizza in $5$ minutes.

D$.$ Starbucks, as it provides the special atmosphere and aroma of fresh coffee.