Final answer:
The waiter made the customer feel he cared by listening to the complaint and doing his best to remedy.
Step-by-step explanation:
In the video example of positive restaurant customer service, the waiter made the customer feel he cared by listening to the complaint and doing his best to remedy. This shows that he was attentive to the customer's concerns and took proactive steps to address them. The other choices, such as recommending an entrée, offering a complimentary dessert, and smiling, also contribute to creating a positive customer experience, but the most impactful action is listening to and addressing the complaint.