0ption B is the correct answer.
An employee who reports fraud or mismanagement.
'When' is typically used to describe a period of time or a particular situation, but in the sentence above, it refers to a person or an asset that describes a person. As a result, its use in this context is improper. Only B option eliminates this error completely without adding any additional ones.
Find more on Fraud related problems at : https://brainly.com/question/28080380
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