Transcription initiation, transcr. post-initiation, translation, or post-transl?

Regulation of gene expression and function in prokaryotes can occur at many different steps, including transcriptional and post-transcriptional levels. Regulation at the transcriptional level can occur at transcription initiation or transcription post-initiation. Regulation at the post-transcriptional level can affect translation and post-translation mechanisms. For each of the following, indicate whether it is involved in regulation at the level of transcription initiation, transcription post-initiation, translation, or post-translation:

• cumulative feedback inhibition (I want to say translation)
  
• GalR
• riboswitch containing a sequestering helix (this one is translation I think)
  
• σ54 involved in nitrogen metabolism (transcription post-initiation?)
  
  Thank you for the help!