I am pretty sure it is A.
I would say that the pair of lines from the passage that contains a change in intonation is the first one:
But all the time / I'se been a-climbin' on
Because it shows a change in the tone of a poem.
C, a tragic hero is one who suffers a great loss.
I'm assuming this is Fahrenheit 451
In the book, firefighters ironically destroy and burn things rather than save and put out fire like we do. Also, technology is much more prevalent in this story. Mildred's life revolves around technology (which is even more important to her than Montag). This "society" is Bradbury's prediction of how technology will change the world. Also, books are illegal.
Some similar things are the dependence on technology and the crime system (Montag is a criminal at the end of the book, and he has to live in hiding.)