Through research and development, a cable company has found a way to use its existing network lines to serve customers with a new product offering – home security systems. the company is offering the service for a lower monthly fee than most security companies. however, the sales force didn't see a lot of interest among its customers who had an existing security system from a competitor until they ran a promotion for reduced prices on equipment and free installation. which of the competitive forces is at play?
a. cost conditionsb. bargaining power of suppliersc. customer switching costsd. complementors