Which of the following is one of the greatest classics of the Sangam literature?

Which of the following is one of the greatest classics of the Sangam literature? Correct Answer Silapadikaram or Manimekalai

Manimekalai mentions the collaboration of architects from Maharashtra, blacksmiths from Malwa, carpenters from Greece and Rome and jewellers from Magadha with their counterparts of the Tamil region. The occupation or profession was generally hereditary or handed down from father to the son. According to Silappadikaram, men of different occupation lived in different streets. This led to progress in various trades and industries and also resulted in making these men skilled in their art. The art of building reached a high level during this period. In this context the works of carpenters are noteworthy. This can be observed in the use of boats with face of the horse, elephant and lion mentioned by Silappadikaram.