What initiation and termination factors are involved in the transcription of prokaryotes?

$\mathrm{\sigma }$ and $\mathrm{\rho }$ factor dependent initiation and termination of transcription is applicable on prokaryotic cells and not in eukaryotic cell.
The question itself is incorrect and there is no correct option as per the given choices. The most probable key is (1).
(2) $\mathrm{\alpha }$ and $\mathrm{\beta }$ are subunits of RNA polymerase.
(3) $\gamma$ is not a termination factor of transcription.
(4) $\alpha$ is not an initiation factor and neither is $\mathrm{\sigma }$ a termination factor in the transcription process of prokaryotes.