Which of These Findings Supports the Progressive Hypothesis of Viral

Question

Which of these findings supports the progressive hypothesis of viral origin?
A)The presence of mitochondria and chloroplast in cells.
B)The existence of obligate intracellular pathogens like Chlamydia.
C)The discovery of nucleocytoplasmic large DNA viruses.
D)The existence of eukaryal transposons or retrotransposon genetic elements.
E)The presence of a nucleus in eukaryotic cells.

Accepted Answer

The progressive hypothesis suggests that viruses originated from genetic elements like transposons or retrotransposons that gained the ability to move between cells.