Final answer:
The olfactory epithelium, located in the superior region of the nasal cavity, is the structure containing the olfactory receptor neurons that enable the sense of smell. The correct answer to the student's question is D) Olfactory Epithelium.
Step-by-step explanation:
The structure in the superior region of the nasal cavity that contains the olfactory epithelium is known for its crucial role in the sense of smell. This area, known as the olfactory epithelium, is essential as it houses the olfactory receptor neurons. These neurons are sensitive to airborne molecules that bind to receptors on the dendrites of the sensory neurons, allowing for the detection of different odors. When airborne odorant molecules dissolve in the mucus of the nasal cavity, they bind to proteins and then to the receptors on the olfactory dendrites, resulting in a graded membrane potential that leads to the perception of smell.
The correct answer to the question is D) Olfactory Epithelium.