Explanation:

- Documentary evidence refers to information presented through documents. It is often used to provide a reliable record of events. Examples include contracts, emails, and official records.

- Direct evidence is evidence that directly proves a fact. It does not require inference. This might include an eyewitness account or a confession.

- Primary evidence is the original piece of evidence, like the original document or object, rather than a copy. It is generally considered the best form of evidence because it has the least chance of being tampered with.

- All the above: Each type of evidence can be the best in different contexts. Their importance is situational and depends on the case.

Correct Answer: All the above