Aptitude- Situational Judgement for Customer Service

What will be the most effective approach to deal with the change in the work procedure from the given options?

You feel that one of your colleagues is not putting in his best effort - he is working too fast and not paying attention. For a while now you find yourself correcting his mistakes after customers have come to complain.
You decide to:

When speaking with an upset customer, which of the following is the most effective response:

When apologising to a customer, what should the sales representative avoid?

A customer approaches you and says: "The service here is just horrible"
What would you say to her?

You are a new customer service representative at the company. While briefing you about the job, your manager gives you a couple of tasks to begin with. However, you find it difficult to understand what you are expected to do.
What is the best way to approach this situation?

What is the first step in learning about a new product?

You have made plans to go out with friends after work to celebrate your friend's birthday. You have spoken with your supervisor in advance and asked to leave early. However, just before you leave you see that a group of customers has entered the shop and there is only one team member to serve them.
What would you do?

You are assigned to answer calls from customers today. When you return from your break, you notice that there is only one employee working at the tills and a long line has formed.
What response would you avoid?

Recently you have been focusing on one of the company's products. You researched its features and managed to sell more products than other members of your team. While you were working in the shop today, you noticed that your teammate Susan is providing a customer with incorrect information about the product. You don't want the customer to be misled, but you also don't want to insult a colleague.
How would you handle this situation?