Which of the Following Describes the First Step in the Replication

Which of the following describes the first step in the replication cycle of the phage $\phi$ X174?

A) Conversion of ssDNA into dsDNA.
B) Translation of the viral genome into protein.
C) Transcription of the viral DNA by the cellular RNA polymerase.
D) Transcription of the viral DNA by the viral RNA polymerase.
E) Integration of the viral DNA into the host chromosome.