Which of the following types of evidence can provide factual information in a clearly documented format?

Documentary evidence is considered a reliable type of evidence because it comprises documents or written material that can be used to substantiate facts. This may include official reports, contracts, photographs, or any other forms of recorded data that have been formally produced and can be verified. Such records provide a clear and reliable way to convey factual information, as they are often subject to examination and can be cross-referenced with other evidence to establish their authenticity.

In legal or administrative contexts, documentary evidence is particularly powerful because it not only communicates specific details but also often includes the context in which those details were produced. This type of evidence is less prone to subjective interpretation compared to opinion and testimonial evidence, which rely more on individual perspectives and can vary from person to person.

Real evidence refers to physical objects that can be examined directly, but it may not always provide the comprehensive or contextual facts that a documentary format offers. Opinion evidence depends heavily on the personal beliefs or interpretations of individuals and lacks the foundational support that documentary evidence provides. Testimonial evidence involves witness statements, which can be subjective and may vary based on a person's recollection or perception of events.

Thus, documentary evidence stands out as the most effective type of evidence for delivering factual information in a clearly documented manner.