To be honest with you, this one is a 50/50 question. I really depends on your own perspective and authors opinion of the book, articles, news, ect. Since I did do some research on this topic before, you can cross out the first one and the second one. It's either between C and D (Pesticides and diseases) but if you really think about it, diseases sound more dangerous and harmful compared to pesticides. In my opinion, I would choose D.
