Final answer:
The base composition of the RNA virus is single stranded.
Step-by-step explanation:
Based on the information provided, we can determine that the base composition of the RNA virus is single stranded.
The RNA virus is composed of a single strand of sugar-phosphate backbone studded with bases, and most RNA types show extensive intramolecular base pairing between complementary sequences, creating a predictable three-dimensional structure essential for their function.
It is important to note that viral genomes show extensive variation and may be composed of either RNA or DNA, and may be either double or single stranded.