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
- $1.0$ and $1.0$
- $1.2$ and $1.0$
- $1.2$ and $1.2$
- $1.0$ and $1.2$