Which kind of evidence includes facts that can be observed or reported firsthand?

The correct answer is direct evidence. Direct evidence consists of facts that can be directly observed or reported without any need for inference or interpretation. This type of evidence includes accounts of events that individuals have witnessed personally, making it more reliable in terms of establishing what happened.

For example, a firefighter or emergency responder witnessing a fire starting and being able to report exactly when and how it began provides direct evidence. This differs from other types of evidence, which may rely on second-hand accounts or require assumptions or interpretations based on the available information.

Objective evidence, while also meaningful, refers more to data and facts that are not influenced by personal feelings or opinions; it does not specifically denote firsthand observation. Observational evidence, on the other hand, can imply a level of interpretation based on what was seen rather than being purely direct. Testimonial evidence generally refers to statements made by witnesses, which may or may not be considered direct evidence if those witnesses did not personally observe the events in question.