Which of the following statements, from the cell theory, best supports the idea that viruses are non-living?

Sticker With A Dead Green Coronavirus Stock Illustration - Illustration of green, cartoon: 176981141

a
All viruses are composed of one nucleic acid and protein.
b
All Living things are composed of cells.
c
All cells are produced from other cells.
d
All animals are composed of cells.

b

All Living things are composed of cells.

The statement from the cell theory that best supports the idea that viruses are non-living is option b: "All living things are composed of cells." This statement implies that if viruses are not composed of cells, they cannot be considered as living organisms according to the cell theory.