Given that competitive markets are defined by 2) firms producing homogeneous products, the cable industry can be described as competitive because Select one: O a. the services which cable companies provide, especially over the past few years, do not have any close substitutes. O b. a single cable company will have the same package of channels offered to customers in multiple different cities. O c. the services provided by cable companies are not demonstrably different from those provided by satellite TV or internet streaming services. O d. the service provided to one customer of a city's cable company is identical to the service provided to a different customer in that same city using the same cable company