Who is considered an eyewitness?

An eyewitness is defined as someone who has witnessed an event firsthand and is able to provide testimony or evidence based on their direct experience. This means that the eyewitness has seen the event occur or has been directly involved in it, allowing them to provide an accurate and personal account of what took place. This type of testimony is often considered reliable because it stems from the individual's own observations.

Options referring to hearsay, such as hearing about an event from someone else or providing testimony based on second-hand information, do not qualify as eyewitness accounts. These sources do not offer the same level of credibility as direct observation does. Similarly, professionals who provide expert analysis do so based on their knowledge and experience in a specific field, but they do not serve as eyewitnesses unless they have directly perceived the event in question. Thus, the correct answer emphasizes the significance of direct personal experience in the definition of an eyewitness.