A jar is filled with two non-mixing liquids $1$ and $2$ having densities ${\rho }_1$ and ${\rho }_2$ respectively. A solid ball of density ${\rho }_3$ is dropped and comes to equilibrium such that it floats at the interface, partially in both liquids. Which of the following is true for ${\rho }_1$, ${\rho }_2$ and ${\rho }_3$?

1. A
   ${\rho }_3<{\rho }_1<{\rho }_2$
2. B
   ${\rho }_1<{\rho }_3<{\rho }_2$
3. C
   ${\rho }_1<{\rho }_2<{\rho }_3$
4. D
   ${\rho }_3<{\rho }_2<{\rho }_1$