Answer:
b. Bureaucracy.
Explanation:
Social reforms are the changes in the social issues of a community or even a nation that makes it more equal and accessible for everyone in society. In other words, we can say that social reforms are the changes in society that are beneficial for the people, the community as a whole.
Among the given options, bureaucracy is not associated with successful reform movements. This is because bureaucracy involves making decisions by the state officials rather than the elected representatives of the people. This means that any decisions regarding the society or community is taken by state officials rather than those chosen to represent the people.
Thus, the correct answer is option b.