Answer:
Option A, the number of dendritic endings present
Explanation:
On the basis of location, sensory receptors are of following types –
Exteroceptor – This is located in external environment near to the stimulus
Interoceptor – This is located in the internal organs
Proprioceptor – This is located in moving parts of the body.
On the basis of type of stimulus, sensory receptors are of following types – Chemoreceptor, Osmoreceptors, Nociceptor, Mechanoreceptor, Thermoreceptor
Classification by receptor complexity or structure
Free nerve endings
Encapsulated nerve endings
Sense organs
Hence, option A is correct
