Answer:
The correct answer is C
Step-by-step explanation:
Differential is the term which is described as that the company or the business is offering a product or a service which is different in the market, different from its competitors, attract the customers.
So, in this case, the restaurant offers the service to the customers, which is offering the option of breakfast (24 hour a day) and none of the competitors offers this service. Therefore, it is an example of the differential, where the service or the product is very different or unique in comparison to others.