The correct answer is option 2: Government of India Act, 1858. This act, also known as the Act for the Better Government of India, was enacted following the Indian Rebellion of 1857. It abolished the rule of the East India Company and transferred the control of India from the company to the British Crown.

Under this act, the secretary of state for India was vested with supreme control over the government of India. The secretary of state became responsible for the administration of India, and all powers previously held by the East India Company were transferred to the British government.

Option 1, Pitt`s India Act of 1784, is incorrect as it did not vest supreme control over the government of India to the secretary of state for India. It did, however, introduce some reforms to the administration of India by creating the Board of Control.

Option 3, the Indian Councils Act of 1861, is also incorrect as it did not vest supreme control over the government of India to the secretary of state for India. This act expanded the legislative councils in India and allowed for the inclusion of Indian members.

Option 4, the Minto-Morley Reforms of 1909, is likewise incorrect as it did not vest supreme control over the government of