A steel column is restrained against both translation and rotation at one end and is restrained only against rotation but free to translate at the other end. Theoretical and design $(\text{IS}:800-2007)$ values, respectively, of effective length factor of the column are

1. $1.0$ and $1.0$
2. $1.2$ and $1.0$
3. $1.2$ and $1.2$
4. $1.0$ and $1.2$