What difference between bacteria and viruses shows that bacteria are living organisms and viruses are not?

a. only bacteria have dna with no nuclei.

b. only bacteria can use conjugation.

c. only bacteria reproduce asexually.

d. only bacteria can reproduce outside a host.

Definitely D and NOT C

D. Only Bacteria can reproduce outside a host.

Just did the test on Apex  on the lesson 2.5.2

D. Only bacteria can reproduce outside a host.

Explanation:

The main argument for the idea that viruses are not living organisms but only infectious particles is mainly that living things must have their own reproduction and metabolism.

Viruses depend on the metabolic processes of a host cell, and have the function of invading cells, dissociating the components of the viral particle, subverting the host cell metabolism to produce more viruses, until the cells burst, releasing the infectious particles.

Bacteria do not always depend on a host to reproduce (asexually by binary fission, and sexually by conjugation, transformation, or transduction) nor produce their food (which may be by photosynthesis or chemosynthesis).