Q: Fact 1: Viruses are not cells. Fact 2: Viruses Viruses are the smallest agents of disease. Given the two facts above, cells do not include?

OPTIONS: a. harmful substances b. sulfate particles c. the smallest agent of disease d. direct damage to the lungs e. sub-units of species f. Inches or fractions of inches. g. Something with a head, thorax, and abdomen h. Direct sunlight.
The answer is:
c.