**Core Concept**
The otic ganglion is a small parasympathetic ganglion located near the foramen ovale in the infratemporal fossa. It is involved in the parasympathetic innervation of the parotid gland, playing a crucial role in salivation and digestion.

**Why the Correct Answer is Right**
The otic ganglion receives preganglionic parasympathetic fibers from the glossopharyngeal nerve (CN IX) via the lesser petrosal nerve. These fibers synapse with postganglionic neurons in the otic ganglion, which then transmit signals to the parotid gland via the auriculotemporal nerve. The parasympathetic stimulation of the parotid gland leads to increased salivation and secretion of digestive enzymes.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the otic ganglion is not related to the sympathetic nervous system, which is primarily involved in the 'fight or flight' response.
**Option B:** This option is incorrect because the otic ganglion is not located near the stylomastoid foramen, but rather near the foramen ovale.
**Option C:** This option is incorrect because the otic ganglion does not receive preganglionic fibers from the facial nerve (CN VII), which is primarily involved in facial expressions and taste.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that the otic ganglion is a small, often overlooked structure that plays a significant role in the parasympathetic innervation of the parotid gland. Knowledge of this structure is crucial for understanding various clinical conditions, such as Frey's syndrome, which occurs after damage to the auriculotemporal nerve and leads to abnormal salivation and facial sweating.

**Correct Answer: D.**