A column of size $450 \: mm \times 600\: mm $ has unsupported length of $3.0$ m and is braced against side sway in both directions. According to $IS \: 456:2000$, the minimum eccentricities (in mm) with respect to major and minor principal axes are:
- $20.0$ and $20.0$
- $26.0$ and $21.0$
- $26.0$ and $20.0$
- $21.0$ and $15.0$