When must all the listings be renegotiated:

Fran is finishing up her portion of the team presentation and passes the speaking role to Maia. She says, "Maia will now discuss the benefits of core strength exercises on running. She'll share her personal story about how strengthening her core resulted in fewer running injuries and how this led to a personal best in the local marathon last year. She'll also demonstrate some of the exercises, such as the side plank and the bridge." Which of the following best explains the effect of this transition?

What will be an ideal response?

A company that follows the marketing concept philosophy should:

A) serve all customer needs at all costs. B) understand that the customer is always right. C) understand that there is no such thing as a bad customer. D) serve only profitable customers.