Hey there!
Here is your answer:
The proper answer to this question is option D "All of the above".
Reason:
Drugs can increase pollution by animals getting a hold of it, or people making it, drugs could lead into criminal activity because some drugs effect and kill brain cells which means your loosing your conscious, drugs could cause diseases which could be spread among people. Drugs could be harmed in many ways.
Therefore the answer is option D.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit