The correct answer is (d), Railways.
Sir Richard Strachey was a British civil servant who served in India from 1842 to 1887. He was appointed to the Indian Civil Service in 1842 and served in various positions in the Indian government, including as Finance Member of the Viceroy’s Council from 1874 to 1880.
In 1878, Strachey was appointed to head a commission to investigate the Indian railway system. The commission’s report, which was published in 1880, recommended a number of reforms to the railway system, including the construction of new lines, the improvement of existing lines, and the standardization of railway equipment.
Strachey’s report was influential in shaping the development of the Indian railway system in the late 19th century. The reforms that he recommended were implemented, and the Indian railway system became one of the largest and most efficient in the world.
The other options are incorrect.
Option (a), Education, is incorrect because Sir Richard Strachey was not involved in education reform in India.
Option (b), Famine, is incorrect because Sir Richard Strachey was not involved in famine relief in India.
Option (c), Police Reform, is incorrect because Sir Richard Strachey was not involved in police reform in India.