The correct option is
C c-i
- Receptors are those molecules which receives chemical signals and convert them into electrical impulses.
- There are different types of receptors present in human body such as tactile receptor, frigido receptor, gustato receptor, tango receptor, thermo receptor, baroreceptors, chemoreceptors, etc.
- These are all external receptors meaning they receive information from external environment. Tactile receptors are a type of receptors located into the skin and are sensitive to light touch. Frigido receptors are sensitive to cold.
- Gustato receptors are present in the tongue and are sensitive to taste. Tango receptors are sensitive to touch and pressure.
Thus, the correct answer is option C.