Correct option is B
West Bengal and Kerala
Land reforms come under the State List and so, the success of land reforms varies from state to state. The most comprehensive and successful reforms took place in the communist strongholds of Kerala and West Bengal.
Land-reforms were successful in Kerala and West Bengal because these states had government committed to the policy of the land to the tillers.
The most successful of all reforms were the abolition of intermediaries like zamindars. There are enough studies to indicate that the quantum of absentee ownership in the 70s was much less serious than in the 50s. Absentee ownership had reduced much more in un-irrigated areas, than in irrigated areas.