Answer:
E, All of the above
Step-by-step explanation:
Customer services is the act of ensuring that all the need of a customers are met by providing professional, high level quality, before and after services to them. It can be simply defined as tthe meeting of customers' need.
In customer service or in order to be a good customer service person all of the things highlighted in the question option are all necessary. A good customer service personnel must ensure that he/she makes products available, has excellent knowledge of the product, is transparent in hi/her dealings with customers and also ensure that his/her treatment of customers does not result in any disruption of the business.
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