**Core Concept**
The question is testing the knowledge of trigeminal nerve blocks, specifically the technique used to block the mylohyoid nerve, incisive nerve, and long buccal nerve. These nerves are branches of the mandibular division (V3) of the trigeminal nerve, which provides sensory innervation to the lower face and motor innervation to the muscles of mastication.

**Why the Correct Answer is Right**
The technique being referred to is the **Infiltration Block** of the **mental nerve**. The mental nerve is a branch of the inferior alveolar nerve, which is a branch of the mandibular division of the trigeminal nerve. The mental nerve provides sensory innervation to the skin of the chin and the lower lip. By blocking the mental nerve, the mylohyoid nerve, incisive nerve, and long buccal nerve are also blocked due to their proximity to the mental nerve. This technique is often used for surgical procedures in the lower face, such as dental extractions.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a technique that targets the mylohyoid nerve, incisive nerve, and long buccal nerve. A **supraorbital nerve block** targets the frontal division of the trigeminal nerve and is not relevant to this scenario.

**Option B:** This option is incorrect because it does not specify a technique that targets the mylohyoid nerve, incisive nerve, and long buccal nerve. A **greater occipital nerve block** targets the posterior branch of the cervical plexus and is not relevant to this scenario.

**Option C:** This option is incorrect because it does not specify a technique that targets the mylohyoid nerve, incisive nerve, and long buccal nerve. A **retromandibular block** targets the main trunk of the mandibular division of the trigeminal nerve, but it is not specific to the nerves mentioned in the question.

**Clinical Pearl / High-Yield Fact**
When performing a trigeminal nerve block, it's essential to identify the correct nerve to be blocked and use the appropriate technique to avoid complications. In this case, the mental nerve block is a useful technique for procedures in the lower face, but it requires careful injection to avoid damaging the surrounding tissues.

**Correct Answer:** A. Mental nerve block