Holin is a small membrane-specific protein produced by the bacteriophge T7.Which of the following describes the function of this protein?

A) It ensures the replication of the entire T7 genome.
B) It helps the T7 phage particles lyse the host cell.
C) It creates the portal in the phage head where the viral genome is packaged.
D) It degrades the host cell wall during entry of the viral genome.
E) It cleaves the viral genome during packaging.