Common cold differs from pneumonia in, that:
Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease.
Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine.
Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae.
Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.
As learnt in @12181 and 12220
pneumonia infects the alveoli (air filled sacs) of the lungs
Option 1)
Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease.
This solution is incorrect.
Option 2)
Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine.
This solution is incorrect.
Option 3)
Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae.
This solution is correct.
Option 4)
Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs.
This solution is correct.