The correct choice is (a) True
Easiest explanation: Yes, both are related to electric potential. The relationship between electric potential and electric field is a differential → electric field (E) is the gradient of electric potential (V) in the x direction. Thus, as the charge moves in the x direction, the rate of its change in potential is the value of the electric field. Then, electric field can be defined as the negative of the rate of derivative of potential difference.