A particle of mass $10\text{ g}$ is kept on the surface of a uniform sphere of mass $100\text{ kg}$ and radius $10\text{ cm}$. Find the work to be done against the gravitational force between them to take the particle far away from the sphere [$G=6.67\times 10^{-11}{\text{ Nm}}^2/{\text{kg}}^2$ ]:

1. A
   $13.34\times 10^{-10}\text{ J}$
2. B
   $3.33\times 10^{-10}\text{ J}$
3. C
   $6.67\times 10^{-9}\text{ J}$
4. D
   $6.67\times 10^{-10}\text{ J}$