A Virus Is Composed of a

A virus is composed of a

A) carbohydrate-covered capsule that contains either one strand of DNA or one strand of RNA.
B) carbohydrate-covered capsule that contains one strand of DNA and one strand of RNA.
C) protein-covered capsule that contains either one strand of DNA or one strand of RNA.
D) protein-covered capsule that contains one strand of DNA and one strand of RNA.