Which of the following statement is correct about South-Indian Literature?

• A. n 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
• B. amil 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
• C. oth A & B
• D. one of the above