**Core Concept**
Meningeal tuberculosis infection can affect any of the cranial nerves, but some are more commonly involved due to their anatomical proximity to the meninges or their clinical manifestations. The cranial nerves involved in meningeal tuberculosis often present with symptoms such as cranial nerve palsies, seizures, or altered mental status.

**Why the Correct Answer is Right**
The cranial nerve most commonly involved in meningeal tuberculosis is the **Oculomotor nerve (CN III)**. This is due to its proximity to the tentorium cerebelli, which is often involved in tuberculous meningitis. The oculomotor nerve controls several extraocular muscles, including the medial rectus, superior rectus, inferior rectus, and inferior oblique muscles. Inflammation or compression of CN III can lead to oculomotor nerve palsy, presenting with symptoms such as ptosis, diplopia, and impaired eye movement.

**Why Each Wrong Option is Incorrect**
**Option A:** While the **Trigeminal nerve (CN V)** is a common nerve involved in various neurological conditions, it is not typically the primary cranial nerve affected in meningeal tuberculosis. CN V is more commonly involved in conditions such as trigeminal neuralgia or herpes zoster infections.

**Option B:** The **Facial nerve (CN VII)** can be affected in various neurological conditions, but it is not the most commonly involved cranial nerve in meningeal tuberculosis. CN VII is more commonly involved in conditions such as Bell's palsy or Lyme disease.

**Option C:** The **Vestibulocochlear nerve (CN VIII)** is primarily involved in hearing and balance. While it can be affected in conditions such as labyrinthitis or meningitis, it is not the most commonly involved cranial nerve in meningeal tuberculosis.

**Clinical Pearl / High-Yield Fact**
The oculomotor nerve (CN III) is often involved in conditions such as diabetic ophthalmoplegia or aneurysmal compression, but in the context of meningeal tuberculosis, CN III involvement is a red flag for tuberculous meningitis.

**Correct Answer:** C.