Which of the following statements about customer complaints is true? O a. Complaints should be viewed as mistakes that a company is making. O b. One way to stem complaints at the source is to provide complaint forms at every point of contact with the customer so that problems can be coped with quickly. O c. All of these are correct. O d. The most important message that can be sent to customers through a company's marketing effort is that the customer is always right. O e. A dissatisfied customer will probably tell at least nine other people about the problem he or she faced with a company.