Correct Answer:
C. Are bound to tell the truth
The correct answer is Are bound to tell the truth. When a person is legally summoned by a court or administrative authority, a foundational principle of justice dictates that they are obligated to appear and provide truthful testimony or information. This ensures that legal and administrative proceedings are based on accurate facts, which is crucial for fair decision-making and the administration of justice.
- May refuse to testify is incorrect; refusal without valid legal grounds can lead to legal consequences.
- Provide documents only is too narrow; testimony is often a primary requirement.
- None of the above is false because there is a clear and correct obligation.