The quality of services depends on who provides them as well as when, where, and how they are provided. Which characteristic of services does this describe?

Variability.

Explanation:

Variability of service can be described as changes in the quality of the same service provided by various providers. In simple terms it the quality of services is determined by various factors for example how they are provided, who provides them, etc. For example, although a company has a reputation for providing good services but still their difference in the quality of the work among its members.

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