Mathew Calls the Customer Service Department of One of His

Mathew calls the customer service department of one of his suppliers to make a complaint. During the conversation, Rob, the customer service agent, acts indifferently toward Mathew. However, Rob is able to resolve Mathew's issue. Despite the fact that his complaint was addressed, Mathew is dissatisfied with his interaction with Rob. In the given scenario, which of the following could have improved Mathew's experience?

A) Rob should have applied the practices of the traditional sales approach.
B) Rob should have been more empathetic to Mathew's situation.
C) Rob should have asked Mathew more questions.
D) Rob should have agreed to Mathew's demands at the beginning of the conversation.
E) Rob should have used strategies to avoid critical encounters with Mathew.