Correct Answer: (c) 2, 1, 4, 3
Solution:The correct chronological order of following saints is as follows-Kabir (1398-1518 A.D.), Namdev (1270-1350A.D.). Mirabai (1498-1546 A.D.) and Guru Nanak (1469-1539 A.D.). Hence, option (c) is the correct answer.