The enzyme that transcribes the eukaryotic genes encoding precursor ribosomal $\text{RNAs}\; (\text{pre-RNAs}$) of $28S$, $18S$ and $5.8S$ $\text{rRNA}$s is
- $\text{RNA}$ polymerase $\text{I}$
- $\text{RNA}$ polymerase $\text{II}$
- $\text{RNA}$ polymerase $\text{III}$
- $\text{RNA}$ polymerase $\text{IV}$