UPSC CSE Prelims

Correct Option: B Explanation: The Government of India Act 1919 differentiated subjects and responsibilities between the central and provincial administrations, while introducing dyarchy in provinces. Option-wise Analysis: A: Incorrect - It did not primarily establish a general separation of the judiciary from the legislature. B: Correct - It defined central and provincial spheres and introduced divided provincial responsibilities. C: Incorrect - Defining Secretary of State and Viceroy powers is not its best distinguishing feature here. D: Incorrect - There is a correct listed description, namely central–provincial jurisdiction.