To determine which quote best supports the answer to Part A, it would help to know what Part A specifically asked. However, if Part A is about illustrating the consequences of fear and panic in society, then the most relevant quote is likely:
B. "The Salem episode was a historic landmark but by no means a rare example of behavior that can afflict frightened, angry, or frustrated people." (Paragraph 13)
This quote directly addresses the broader implications of fear leading to irrational behavior, thus supporting a discussion about the impact of fear and societal reactions, which seems to be the theme in Part A.