Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to deal with customer complaints [title] Take a deep breath and put your emotions aside. [step] When someone is complaining about your business, it can feel like an attack. But you need to remain as calm and emotion-free as possible to help successfully deal with the complaint.

Ending1: If you react with anger and frustration, the customer might feel it too. Take a deep breath, and do what you can to avoid becoming angry and frustrated. Ending2: Before you meet or speak with the customer, take a deep breath to help you calm down and put your emotions to the side. [substeps] Let your calm demeanor guide the customer as much as possible. Ending3: [substeps] Resist the urge to scream or hit someone when they complain. Its important to hear these things from the customer to preserve your emotional control. Ending4: [title] Assess if you have heard a customer complaining about your business' products or services. [step] Customers often complain when they have a bad day or a bad experience.

Answer format: ending1/ending2/ending3/ending4