What is it they you are trying to say.
The first one is your opinion. the second ones answer is: easily, because you can find them in libraries. The third is: Romeo and Juliet and many other Shakespeare poems. The fourth is opinionated also.
Perhaps the answer is A) fragility of life. Because butterflies are so tender and fragile, they might represent life itself, and how fragile it can be, and how quickly it can disappear in a second.
Basically. You have to write an essay on how far you agree with the statement. So write two agree paragraphs and two disagree paragraphs then a conclusion. For agree find quotes or points in the text that mean you agree and then for disagree find quotes or points that mean you disagree. Then decide overall if you agree or disagree.