The Late and Very Late Genes of Baculoviruses Contain Promoters

The late and very late genes of baculoviruses contain promoters that have sequences that are distinct from those of the host cell promoters.Which of the following explains why?

A) These unique sequences bind the cellular RNA polymerase more tightly.
B) The virus uses virus specific transcription factors to regulate viral transcription.
C) These sequences are recognized by the viral DNA polymerase.
D) These sequences are recognized by the viral RNA polymerase.
E) These sequences form a unique secondary structure that influences transcription.