The correct answer is (d). The Permanent Settlement was a land revenue system introduced in Bengal in 1793 by Lord Cornwallis. Under this system, the zamindars (landlords) were given permanent ownership of the land in return for a fixed annual payment to the British government. The Sunset Law was a provision of the Permanent Settlement that allowed the British government to resume control of land if the zamindars failed to pay their taxes.
The Ryotwari settlement was a land revenue system introduced in Madras in 1802 by Lord Wellesley. Under this system, the ryots (peasants) were directly responsible to the British government for paying land revenue. The Mahalwari settlement was a land revenue system introduced in the North-Western Provinces in 1822 by Lord Hastings. Under this system, a group of villages was treated as a unit and the revenue was collected from the headman of the village. The Ijaradari system was a land revenue system under which the government leased out land to contractors, who were responsible for collecting revenue from the peasants.
The Sunset Law was a controversial provision of the Permanent Settlement. Some people argued that it was unfair to the zamindars, as it gave the British government the power to take away their land without compensation. Others argued that it was necessary to ensure that the zamindars paid their taxes. The Sunset Law was eventually repealed in 1859.