Which of the following statements are true in respect of Bhakti Tradition?

Alvars bhakti movements was led by those devoted to Vishnu. Nayanars bhakti movements was led by those devoted to Shiva. Both Alvars and Nayanars travelled from place to place singing hymns in Tamil in praise of their gods. All of the above

All of the above

Some of the earliest bhakti movements (c. sixth century) were led by the Alvars (literally, those who are "immersed" in devotion to Vishnu) and Nayanars (literally, leaders who were devotees of Shiva). They travelled from place to place singing hymns in Tamil in praise of their gods.