Tamil is the oldest with literature dating back to early centuries of Christian era. This developed during the three Sangams(assemblies of poets and writers) held during different times
None of these
Both A & B
In Southern India, the ancient Indian writings were written in four Dravidian languages which developed their own script and literature, these are, Tamil, Telugu, Kannada,Malayalam
The Mauryan art is believed to be inspired from Achaemenid or Persian influence. We can find a lot of similarities in terms of form and style in the inscriptions of Ashoka and the Persian king Darius.
Universal soul is one of the main Keystone of the philosophy and the thought of the Upanishad. Brahma satyam Jagat Mitya Jeevo Bramanah Parah talks about the impermenance of the body and its existence.