Consider the following statements regarding the early traditions of Bhakti and select the correct ones: I. Historians draw on hagiographies of saints for knowing traditions. II. Many beliefs and practices were shaped through 'great' and 'little' Sanskritic Puranic traditions. III. Bhakti tradition was classified into two broad categories Saguna and Nirguna. IV. God was worshipped with attributes in the Nirguna bhakti.