What is meant by the 'secularisation of caste' in the sociological analysis of modern India?

Which of the following statements correctly describe the catalysts driving transformations within the modern caste system? I. Land reforms have disrupted traditional economic relationships within the caste system. II. Access to education has empowered lower castes, fostering awareness and equality. III. Social legislation aimed at promoting equality has contributed to a reduction in caste-based discrimination. IV. Industrialization and urbanization have challenged traditional roles, leading to a more merit-based societal structure. Choose the most appropriate answer from the options given below:

'Caste is a Brahmanic child of Indo-Aryan culture cradled in the land of Ganges and thence transferred to other parts of India.' Whose statement is this?