Definition: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: [header] How to choose a quality answering service for your business [title] Know what makes great customer support great. [step] Focus on them and work on them well to provide the best support your clients will benefit from. [title] Know also what makes bad customer support bad. <sep> (A) [step] Just like knowing the important factors affecting how well an answering service can work for your customers, you should also be aware of the common factors all bad customer support services have. Delayed response time? Operators not able to provide solutions that works? Knowing what these factors are can help you avoid using them. (B) [step] The best policies are trust-breakers and if you tell your customer that is not enough to do what you say, then things won't go smoothly. Also pay attention to the focus of your customer service based on how often you ask the customer to return phone calls as well as the professional atmosphere of the business. (C) [step] A good sign for having better customers is whether there is this rating on the system. Often, they lack this rating because they have higher billing hours. (D) [step] For example, you should sit down and consider why the customer service providers you choose are offering you good service. They might be trying to get their customers to fill up slot on their website.
Output:
A