**Core Concept**
Zenker's diverticulum is a true diverticulum that arises from the muscular wall of the pharynx, specifically from the Killian's dehiscence, a weak point in the muscular wall of the posterior pharyngeal wall, just above the cricopharyngeus muscle.

**Why the Correct Answer is Right**
The diverticulum is a herniation of the mucosa and submucosa through this weak point, leading to a pouch-like structure that can trap food and cause symptoms such as dysphagia, regurgitation, and aspiration. The cricopharyngeus muscle, which is part of the inferior pharyngeal constrictor muscle, is often hypertonic and fails to relax, contributing to the development of Zenker's diverticulum.

**Why Each Wrong Option is Incorrect**
**Option A:** This option may refer to a false diverticulum, which is a pseudodiverticulum that does not involve the muscular wall of the pharynx.
**Option B:** This option may refer to a pharyngeal pouch, which is a congenital anomaly that is a true diverticulum, but it occurs in a different location, usually in the mid-pharynx.
**Option C:** This option may refer to a Zenker's diverticulum located in the anterior pharyngeal wall, which is incorrect as it arises from the posterior pharyngeal wall.

**Clinical Pearl / High-Yield Fact**
Zenker's diverticulum is often associated with a hypopharyngeal dysphagia, and symptoms may be exacerbated by swallowing thick or solid foods, leading to a characteristic "corkscrew" appearance of the food bolus on barium swallow studies.

**Correct Answer:** C.