Answer:
Option (3)- sensory neurons are depolarized.
Step-by-step explanation:
Cell membrane potential is known as the difference in the cell potential inside and outside of the cell. This membrane potential helps in the transmission of nerve impulse.
DDT when absorbed in the body causes burning, itching in the body. These sensations are felt by the body due to depolarization. As the nerve impulse shows transmission, the cell potential changes from the resting membrane potential to the polarization phase.
Thus, the correct answer is option (3).