A short electric dipole has a dipole moment of $16\times 10^{-9}\text{C m}$. The electric potential due to the dipole at a point at a distance of $0.6\text{m}$ from the centre of the dipole, situated on a line making an angle of $60^{\circ }$ with the dipole axis is:($\frac{1}{4\pi {ϵ}_0}=9\times 10^9{\text{N m}}^2{\text{/C}}^2$)

1. A
   $50\text{V}$
2. B
   $200\text{V}$
3. C
   $400\text{V}$
4. D
   zero