Question

A whistle-blower is when an employee reports fraud or mismanagement in a company.

• A. When an employee reports fraud or mismanagement
• B. An employee who reports fraud or mismanagement
• C. Reporting by an employee of fraud or mismanagement
• D. If an employee reports fraud or mismanagement
• E. Fraud or mismanagement being reported by an employee

Answer 1

The correct option is B An employee who reports fraud or mismanagement

"When" is generally used to refer to time or circumstance but in the given sentence it is used to refer to a person/ something that in its turn describes a person. Therefore, its usage here is ungrammatical. Only option B rectifies this error without adding any new ones.