Removal of $RNA$ polymerase $I$ from nucleoplasm will affect the synthesis of

$A$ : Sigma factor of $RNA$ polymesase recognizes the start signal region in prokaryotes.

$R$ : Promotor region lies at $5^{\prime}$ of template strand, $?$

During elongation of polypeptide chain, sigma factor is

Transcription is

$A$ : $RNA$ polymerase is of three types in eukaryotes for the synthesis of all types of $RNAs$.
$R$ : $RNA$ polymerase consists of six types of polypeptides alongwith rho factor which is involved in termination of
$RNA$ synthesis.