The correct answer for the following question is letter c.
secondhand smoke exposure. Exposing a family member, whether an infant, child or
an adult is exposed to secondhand smoke, he or she may be put at risk of
developing chronic diseases, such as asthma. Being exposed to too much smoke
may increase the chances of further developing life-threatening risks.
Secondhand smoke is more lethal compared to smoking the cigarette itself.
It's true cause a child has an developing immune system whereas adults have that already developed so the children under development are more likely to have those problems.
