**Core Concept:**
The nasolacrimal duct is a part of the lacrimal drainage system, which transports tears from the lacrimal sac to the nasal cavity for drainage or reabsorption.

**Why the Correct Answer is Right:**
The correct answer is **D**. The nasolacrimal duct opens into the inferior meatus of the nasal cavity. The inferior meatus is the lowest part of the nasal cavity, located below the inferior turbinate and posterior to the inferior conchae. This anatomical placement ensures efficient drainage of tears into the nasal cavity, where they can be either reabsorbed or pass into the pharynx via the nasopharynx.

**Why Each Wrong Option is Incorrect:**
A. The correct answer (D) is not the correct answer. The nasolacrimal duct does not open into the superior meatus, as this is the upper part of the nasal cavity and tears would not effectively drain into the oral cavity or pharynx.
B. Similarly, the nasolacrimal duct does not open into the middle meatus, which is the middle part of the nasal cavity. The tears would not drain efficiently into the oral cavity or pharynx.
C. The nasolacrimal duct does not open into the posterior naris, which is the posterior opening of the nasal cavity. Tears would not effectively drain into the oral cavity or pharynx.

**Clinical Pearl:**
Understanding the anatomy and function of the nasolacrimal duct is essential for understanding tear drainage and potential surgical interventions related to obstructed tear drainage (e.g., dacryocystorhinostomy). A thorough knowledge of nasal anatomy is also important for interpreting clinical signs and symptoms in patients with tear drainage problems.

**Correct Answer:** D