Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to handle angry customers [title] Remain calm and adjust your mindset. [step] No one likes to get confronted by a yelling, heated person in a public space. However, your job in this situation is to stay cool and collected.

Ending1: Stepping in will show your manager you don't take yourself seriously and that you can take responsibility. [substeps] If you get into a heated area, such as someone's locker or silverware drawer, explain this to the manager, then give your supervisor a brief update. Ending2: Make a big effort to remain calm and level in front of other parties. This can be especially helpful for the agency who processes your email in a crisis. Ending3: While you may have the urge to yell right back at them, fight the urge! Yelling and getting angry will only escalate the situation. Instead, put on your best customer service attitude and buckle down--it's time to get to work. Ending4: This will make you a good customer and help you to avoid repeating yourself; rather, lose your cool and assert yourself in a calmer, healthier way. [substeps] Take a deep breath and try to remain calm.

Answer format: ending1/ending2/ending3/ending4