The correct option is C tRNA
There are three types of nuclear RNA polymerases in eukaryotic cells. RNA polymerase I (Pol I) synthesizes only one type of RNA, a transcript called preribosomal RNA (or pre-rRNA). It contains the precursor for the 18S, 5.8S, and 28S rRNAs. RNA polymerase III (Pol III) synthesizes tRNAs, the 5S rRNA, and some other small specialized RNAs. RNA polymerase II (Pol II) synthesizes mRNAs and some specialized RNAs. Introns are the non-coding sequences of genes, that are present between exons but do not code for the polypeptide. The correct option is B.