Correct Answer: (d) 2, 1, 4, 3
Solution:First Buddhist council was held soon after the death of Buddha under the patronage of King Ajatashatru with the monk Mahakassapa presiding at Saptaparni Cave at Rajgriha. The second council took place during the reign of Kalasoka after 100 years of Buddha's death in Vaishali and was presided over by Sabakami. The third council was held during the reign of Ashoka at Pataliputra, and the fourth council was held during the reign of Kanishka at Kashmir (Kundalavana).