Which statement is true regarding a witness's testimony?

The statement that a witness's testimony must always be factual and unbiased is accurate because the integrity of a witness's testimony is paramount in any legal proceeding. Testimony is expected to present the truth of what the witness observed or experienced, free from personal biases or influences that could distort the account. This ensures that the information provided to the court can be relied upon for decision-making. Factual and unbiased testimony helps to uphold the fairness of the judicial process and supports the principle of justice.

While personal beliefs and opinions may be relevant in certain contexts, especially in cases involving expert witnesses, they do not apply to general witness testimony, which should prioritize objective observations. Confidentiality is typically not a requirement for witness testimony, as it is meant to be shared in a public forum during legal proceedings. Anonymity is also not standard practice, as witnesses are usually required to identify themselves to ensure accountability and credibility in the justice system.