The correct answer is option 2, the Government of India Act, 1858. This act vested the secretary of state for India with supreme control over the government of India.

Option 1, Pitt`s India Act, 1784, is not the correct answer. This act was passed to regulate the administration of the East India Company and create a system of dual control, but it did not give the secretary of state for India supreme control over the government of India.

Option 3, the Indian Councils Act, 1861, is also not the correct answer. This act expanded the legislative councils and allowed for the inclusion of more Indians, but it did not give the secretary of state for India supreme control.

Option 4, the Minto-Morley Reforms, 1909, is not the correct answer either. These reforms introduced new measures for the representation of Indians in the legislative councils, but they did not give the secretary of state for India supreme control.

It is important to note that the Government of India Act, 1858, was passed after the Indian Rebellion of 1857, also known as the Sepoy Mutiny, which resulted in the transfer of power from the East India Company to the British Crown. The act established the