Anarchy is the absence of a government and absolute freedom of the individual.
Option B: 'Sophist' is a paid teacher of philosophy and rhetoric in Greece.
Option D: 'Nihilist' is a person who believes that life is meaningless and rejects all religious and moral principles.
These words do not mean the same as the given group of words. So, it cannot replace them.
Hence options A, B and D are incorrect.