Respuesta :
The answer is D. Viruses replicate inside respiratory cells. Hope this will help
The correct answer is option option D
The best description how the common cold spreads in the human body is by the replication of virus inside the respiratory track(cells of respiratory tract) of the body.
It is a viral infection. Common cold is caused by being in contact with the person who is affected from it.
Common symptoms are coughing, sneezing, fever,et cetera.