The only conjunction in this sentence is C) but.
All of the other options are prepositions, not conjunctions.
Answer:
The narrator was walking to the tram line to board a tram car. On the way he saw a white boy and a black boy playing an unusual game. The white was around four and the other probably five. The game they played pained the narrator because the white boy was giving orders to the black boy who obeyed him like a slave.
Yes, in Chapter 1 the rose bush represents that even though the prison is a cold and dark place, beauty can still be found. In Chapter 7, the rose bush is the only beautiful thing in the garden, which alludes to the same message as that in chapter 1.
