Which of the following is an major theme in the novel that is also portrayed when Atticus reluctantly agrees to be the one to shoot the mad dog?

A. People are complex individuals and should never be stereotyped.

B. Sometimes it’s necessary to do unpleasant things to serve the greater good in society.

C. Sometimes the many stand on the shoulders of the few.

D. Danger can be found in places you’d least expect it.