PART B: Which piece of evidence provides the best support for the answer to Part A?

A
“…one of my students got in trouble and he was taken out of class and I started to ask around… And my prisoner-students told me about this unit” ( Paragraph 8)
B
“No teacher has ever gone into this unit. So, of course, that made me want to get into that unit.” ( Paragraph 9)
C
“these inmates that not only are the worst of the worst, at least in the eyes of the public, but more importantly, in my own eyes…” ( Paragraph 9)
D
“so here comes somebody from the street knocking on their cell door and saying, hi, would you like to read some Shakespeare?” ( Paragraph 10)