Answer:
I can't see the statements so I can't give a definite answer. However, think of it this way: We know the statement needs to add to the idea that insects are dangerous. So you need to chose the option that presents insects in a negative light or gives a specific reason to fear them. A neutral or positive fact about insects would not support the idea.
It is a warning that indicates a future event.
We can't have hero's without villains/monsters. So I AGREE. Because hero's are only hero's because of the fact of us having monsters. Who would they face? Nothing? Then they wouldn't be hero's. We need bad things /people to have HERO'S to save and help us otherwise if everything was perfect, we wouldn't need hero's.