This question tests your knowledge of Domain 11.
In the context of Testifying, specifically relating to expert witness, testimony, the question asks about the core concepts in this area.
The correct answer is C: To give an opinion when the fact finder needs specialized knowledge.
This question relates to expert witness testimony. The correct answer accurately describes the role, qualifications, or techniques for effective expert testimony. Fraud examiners often serve as expert witnesses and must understand these principles. Expert witnesses provide specialized knowledge to help the fact finder understand complex issues. Their testimony must be relevant, reliable, and based on sufficient facts or data.