Well, it all starts with the mouth, which contains the nasal cavity which is the first destination. Which then caries into the throat where the trachea is and the only option with that is B. So, I would say B would be your correct answer, just google a picture of the respiratory system. Hope this helps in the near future.
Less people will have to inhale the second smoke from others due to smoking in public. Many people could have less health problems due to lack of second hand smoke inhalation
