Final answer:
The burning of a library suggests that Mukadam's attitudes are not prevailing. So, the correct answer is option c.
Step-by-step explanation:
The event, cited by Rushdie, that suggests Mukadam's attitudes are not prevailing is the burning of a library. This event signifies a disregard for knowledge, cultural heritage, and intellectual freedom, which are typically not prevailing attitudes in society.
The destruction of a library represents an act of intolerance and anti-intellectualism, indicating that Mukadam's attitudes do not align with the values of a progressive and open society. So, the correct answer is option c.