Explanation:

The unit of application of ceiling differs from State to State. In Andhra Pradesh, Assam, Bihar, Punjab, Haryana, Uttar Pradesh, West Bengal, Madhya Pradesh and Maharashtra, it is on the basis of an 'land holder', whereas in the other States it is one the basis of a 'family'.

 In order to bring about uniformity, a new policy was evolved in 1971 which changed unit of application of ceiling to family rather than the individual for land holdings lowered ceiling for a family of five. Fewer exemptions from ceilings where also given for economic delopment and public welfare. Therefore, Options (a) and (d) are not correct.

After Independence, the immediate goal of the Government was to increase foodgrains production by switching over from cash crops to food crops, therefore, Land reforms were not focussed on cash crops and hence it did not lead to cash crops being predominant form of cultivation. Also, the Land reforms in Haryana and Punjab were the reason for introducing Green Revolution. It focussed more on food crops production as predominant form of cultivation and not cash crops. Therefore, Option C is not correct.

 The Land Reforms in India-aimed at the redistribution of ownership holdings and reorganising operational holdings from the view point of optimum utilisation of land. It has also aimed at providing security of tenure, fixation of rents and conferment of ownership. Hence, option B is correct.