Under the Permanent Settlement, 1793, the zamindars were required to issue pattas to the farmers which were not issued by many of the zamindars. The reason was

The correct option is B because the Permanent Settlement lacked an effective administrative mechanism to monitor the zamindars. Although the British government expected zamindars to issue pattas which were documents specifying the rent and land rights of farmers they did not establish any official check or regulatory body to enforce this requirement. Consequently, the zamindars ignored the rule to keep the farmers as tenants at will, allowing them to increase rents arbitrarily and evict farmers without legal hurdles. The farmers could not easily approach the courts due to the high cost and complexity of the legal system at that time.