Theory of knowledge regarding methods, validity, scope, and justified belief vs. opinion

Correct option is B

Epistemology is the branch of philosophy concerned with the nature, sources, limits, and validity of knowledge — specifically distinguishing justified true belief from mere opinion.
Information Booster:
1. Ontology deals with the nature of reality/existence, not knowledge.
2. Methodology concerns the specific procedures/techniques used in research.
3. Post-positivism is a broader research paradigm, not a branch of philosophy about knowledge itself.
4. Epistemology underpins debates about objectivity, truth, and how we "know what we know" in research.