Correct Answer  Option 2 : Volt
CONCEPT:
 The amount of work done in moving a unit positive charge in an electric field from infinity to that point without accelerating the charge against the direction of the electric field is electrostatic potential.
 The electrostatic potential is given by
\(\Rightarrow V = \frac{W}{q}\)
Where V = Electrostatic potential , W = Work q = Charge
EXPLANATION:
 The electrostatic potential is given by
\(\Rightarrow V = \frac{W}{q}\)
Substituting the corresponding values of units in the above equation, the equation becomes
\(\Rightarrow V = \frac{Joule}{Coloumb}\)
\(\Rightarrow V = J/C \)

Unit of electric potential is J/C is abbreviated as Volt. Hence option 2 is the answer