Marina receives a call from an angry customer, who claims a product is not working properly. marina should provide quality customer service by

a. explaining that all sales are final
b. providing the customer a choice between a refund or a replacement
c. sympathizing with the customer and sharing a similar personal story
d. telling the customer about an upcoming sale

The correct answer is B. Providing the customer a choice between a refund or a replacement

Explanation:

Quality customer service involves supporting and helping costumers during the process of buying and using a product or service. This includes helping customers if there is a problem with the product or service they paid for. In this case, the usual is to offer a replacement in the case the product bought by the customer is defective or the problem can be solved by providing a new; besides this, customer service agent should offer a refund in case the customer does not want a replacement or this action does not solve the problem. These two actions are important because it guarantees the problem is solved effectively and the customer feels supported. According to this, the best for Marina is "providing the customer a choice between a refund or a replacement".