The drug is most likely going to be tobacco, it is well known that if you smoke one of the side effects is respiratory issues
Answer:
cancer diagnosis because it is more serious than the rest
If you look it up, it will give you the approximate value of SA= 2205.4. I really don’t know if this is right because surface area is of a 3D object and area alone is for a 2D object. You may want to look up the proper formula.