Olfactory receptors are present in

Options

A. eye
B. nose
C. ear
D. skin

Explanation

To answer the question "Olfactory receptors are present in," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Olfactory Receptors**:
- Olfactory receptors are specialized sensory receptors that detect smell. They play a crucial role in the sense of olfaction.

2. **Identifying the Sense of Olfaction**:
- The sense of olfaction refers to the ability to perceive odors or smells. It is an essential sensory function that helps organisms interact with their environment.

3. **Determining the Sense Organ for Smell**:
- The primary sense organ responsible for the sense of smell is the nose. It contains the olfactory receptors that detect airborne chemical substances.

4. **Conclusion**:
- Since olfactory receptors are responsible for the sense of smell and are located in the nose, we can conclude that olfactory receptors are present in the nose.

5. **Final Answer**:
- Therefore, the answer to the question is that olfactory receptors are present in the nose.