Explanation:

- Wholly reliable: This implies that the oral testimony can be completely trusted without any doubt. It is consistent and corroborated by other evidence.

- Wholly unreliable: This indicates that the testimony cannot be trusted at all. It may be inconsistent or contradicted by other facts.

- Neither wholly reliable nor wholly unreliable: Most testimonies fall here. They may include reliable elements but need corroboration due to potential inaccuracies.

- All of them: Oral testimony can be classified into any of the above categories depending on circumstances and supporting evidence.

Correct Answer: Option 4 - All of them