Upon Infection with a Coccolithovirus, the Microalgal Host Cell May

Upon infection with a coccolithovirus, the microalgal host cell may switch from the usual diploid life stage to a haploid cell.Which of the following describes the advantage this has for the host cell?

A) The haploid cell can not replicate the viral genome, so no new viruses are produced.
B) The haploid cell produces a barrier that prevents virus particles from entering.
C) The haploid cell can swim away from virus infested waters.
D) The haploid cell can fuse with other haploid cells, producing virus resistant strains.
E) The haploid cell does not produce the host cell receptor for virus entry.