History · Tribal Movements of Jharkhand

Consider the following statements regarding the 'Adi-Dharam' movement led by Dr. Ram Dayal Munda: I. It sought to provide a philosophical and theological framework for tribal religions, emphasizing their distinctiveness from the Hindu caste system. II. It advocated for the recognition of 'Sarna' as a way of life that is inherently ecological and egalitarian. III. It argued that tribal identity is strictly a post-independence political construct with no historical roots. IV. It emphasized the concept of 'Adivasidom' as a unifying global identity for indigenous people. Which of the above statements are correct?