38. Which of the following description about viruses is (are) CORRECT?
(A)Viruses are small parasites that can replicate only in host cells.
(B)Viral genomes could be either DNA, RNA, or RNA: DNA hybrid.
(C)Viruses that infect bacteria are called phages, and are studied as alternative agents to antibiotics.
(D) Enveloped viruses are viruses covered by external membranes that consist mainly of phospholipid bilayer
and virus-encoded proteins.
(E) Retroviruses are enveloped animal viruses containing a RNA genome which could integrate into host
chromosomal DNA after penetrating into cells and reverse transcribed into DNA.