Regarding the use of blogs/chat rooms in customer service (Chapter 5): A. about 80% of customers read a company's blog. B. blogs are useful for venting and expressing complaints, but rarely for providing service. C. companies should use real-time online conversation and be involved in dialogue with customers. D. although trendy, blogs have little practical application for customer service.A major disadvantage of relying on Web-based e-service is (Chapter 5): A. that some companies try to make it a substitute for phone or direct contact with customer service personnel. B. that it damages personal relationships. C. that some companies try to make it a substitute for phone or direct contact with customer service personnel. D. the high cost of creating a web page