The correct answer is: c) The Legislative Assembly.
The Manipur State Council of Ministers was established under the Constitution Act of 1947. The Act provided for a Legislative Assembly, which was responsible for making laws for the state. The Council of Ministers was responsible to the Legislative Assembly. The Maharaja was the head of state, but he had no real power. The Indian government had no direct control over the Manipur State Council of Ministers.
The British Political Agent was a British official who was responsible for overseeing the relationship between the British government and the Manipur state government. The Political Agent had no power to interfere in the internal affairs of the state.
The Legislative Assembly was a body of elected representatives who were responsible for making laws for the state. The Assembly was responsible to the people of Manipur.
The Indian government was the central government of India. The Indian government had no direct control over the Manipur State Council of Ministers.