The olfactory receptors are examples of c) chemoreceptors.
Olfactory receptors are specialized sensory cells located in the nasal cavity that detect odors. These receptors respond to chemical stimuli, which is why they fall under the category of chemoreceptors. Unlike thermoreceptors, which sense temperature, mechanoreceptors that respond to mechanical pressure or distortion, and proprioceptors that provide information about body position, olfactory receptors specifically interact with airborne chemicals, allowing us to perceive different smells. This intricate process is crucial for our sense of smell and plays a significant role in taste and flavor perception as well.