Which of the following statements regarding Kerala's literary sources are correct?
i) The earliest reference to Kerala is found in Aitareya Aranyaka.
ii) The oldest dated literary work that mentions Kerala is Varttika.
iii) The Ramayana refers to Kerala in the Yuddha Kanda.
1
Only i and ii
2
Only ii and iii
3
Only i and iii
4
All of the above