Why is handling outliers important in instrumentation experiments, and what is a recommended approach?

• A. Outliers should always be kept to maintain sample size.
• B. Outliers can be flagged but must be explained with justification.
• C. Outliers distort statistics; handle with repeat measurements, robust methods, and justified rejection criteria.
• D. Outliers are always errors and must be discarded without justification.

Answer: (C)