Physics - Semiconductors Question with Solution | TestHub

The number of free conduction electrons is significant in $\mathrm{C}$ but small in $\mathrm{Si}$ and $\mathrm{Ge}$.

The number of free conduction electrons is negligible small in all the three.

The number of free electrons for conduction is significant in all the three.

The number of free electrons for conduction is significant only in $\mathrm{Si}$ and $\mathrm{Ge}$ but small in $\mathrm{C}$.