Which sequence correctly lists the taxonomic classification levels from the most inclusive to the most specific?

Gram-negative organisms are characterized by a thin peptidoglycan layer located between the inner cytoplasmic membrane and an outer membrane containing lipopolysaccharide (LPS). The thin peptidoglycan layer is insufficient to retain the crystal violet stain during Gram staining, which is why gram-negative bacteria appear pink after counterstaining with safranin. In contrast, gram-positive bacteria have a thick peptidoglycan layer that retains the crystal violet-iodine complex, appearing purple under a microscope. The thin peptidoglycan and outer membrane structure of gram-negative bacteria also contributes to their increased resistance to certain antibiotics compared to gram-positive organisms

The COVID-19 virus, scientifically known as SARS-CoV-2, is an RNA virus, not a DNA virus. Its genetic material consists of single-stranded positive-sense RNA, which serves as a template for viral replication and protein synthesis inside host cells. RNA viruses generally have higher mutation rates than DNA viruses due to the lack of proofreading mechanisms during replication. Understanding the RNA-based genome of SARS-CoV-2 is crucial for developing diagnostic tests, vaccines, and antiviral therapies. Classifying it correctly as an RNA virus also distinguishes it from DNA viruses, which replicate using DNA as their genetic material and follow different replication strategies.