Physics · Electrostatic Potential

Consider the following statements regarding electrostatic potential: (A) Electrostatic potential at a point is numerically equal to the work done in bringing a unit positive test charge from infinity to that point. (B) The SI unit of electrostatic potential is Volt. (C) Potential is a scalar quantity. (D) Potential inside a charged hollow spherical conductor is zero everywhere. Which of the above statements are correct?

1. A
   (B) and (D) only
2. B
   (A), (B) and (C) only
3. C
   (A), (C) and (D) only
4. D
   All (A), (B), (C) and (D)