Which of the following statement(s) is/are correct about the early traditions of Bhakti? I. In the course of the evolution of forms of worship, in many instances, poet-saints emerged as leaders around whom there developed a community of devotees. II. Brahmanas remained important intermediaries between gods and devotees in several forms of bhakti. III. At a different level, historians of religion often classify bhakti traditions into two broad categories: saguna (with attributes) and nirguna (without attributes)