The Q Protein From $\lambda$ Phage Activates Expression of Head and Tail Genes Using Which

The Q protein from $\lambda$ phage activates expression of head and tail genes using which of the following mechanisms?

A) It causes anti-termination at the transcriptional terminator t_L1
B) It activates transcription from P_R'.
C) It causes anti-termination at the transcriptional terminator t_R'.
D) It inhibits activity of the N protein.
E) It inhibits the activity of the $\lambda$ cI repressor.