C

Reasoning: The dura mater of the middle cranial fossa is innervated chiefly by the meningeal (nervus spinosus) branches of the maxillary (V2) and mandibular (V3) divisions; these small twigs enter the cranial cavity after the divisions have already left the parent trigeminal nerve, so the trigeminal nerve proper does not directly supply this dural area [Lee et al., 2017, PMID 29311855]. By contrast, both roots attach to the lateral pons (A), the nerve has three principal divisions (B), and the Gasserian ganglion is purely sensory, contributing only to the sensory component (D).