Explanation:

Explanation: The Act of 1858 was largely confined to the improvement of the administrative machinery by which the Indian Government was to be supervised and controlled in England. It ended the system of double government by abolishing the Board of Control and Court of Directors. After 1858, the interests of India were further subordinated to those of Britain. Due to the conflicts of Britain with the other imperialist powers, India was made to serve the British economic interests.

A is the correct option.