Based on the BSG answer the following question:

Operating strategies concern

A$)$what the firm's operating departments are doing and plan to do to unify the company's functional and business strategies

B$)$the actions, approaches, and practices to be employed in managing particular business processes or key activities within a business$--$like production, new product development, sales and marketing, customer service, and finance

C$)$the specific plans for building competitive advantage in each major department$($R&D$,$ production, marketing, finance$)$ and operating unit$($plants$,$ distribution centers, geographic divisions$)$

D$)$the specific operating practices and business systems that a company plants to use in implementing and executing particular pieces or components of the company's overall strategy

E$)$the relatively narrow strategic initiatives and approaches for managing key operating units$($plants$,$ distribution centers, geographic units$)$ and specific operating activities with strategic significance$($quality control, advertising, brand$-$building efforts, supply chain$-$related activities, and website operations.$)$