Correct Answer: (b) Both I and II
Note: Some of the earliest works in Tamil, known as Sangam literature, were composed around 2300 years ago. These texts were called Sangam because they were supposed to have been composed and compiled in assemblies (known as sangams) of poets that were held in the city of Madurai. Sangam literature is one of the main sources used for documenting the early history of the ancient Tamil country, be it the kings, rulers, poets, etc. The Sangam poets and the unknown Greeks were contemporaries.
Therefore, Both I and II are correct.