Correct Answer: (c) 1 and 3 only
Solution:Tabo monastery and temple complex is in Spiti Valley and Alchi temple complex is in Ladakh. Lhotsava Lhakhang, Nako is in Himachal Pradesh. Zanskar Valley is in Jammu and Kashmir.
Buddhism arose in the 6th century BCE in the Gangetic plain during a time of second urbanisation and social changes in India. As Buddha's teachings resonated with people discontented with Vedic rituals and caste system, Buddhism quickly spread across northern India. Political and economic support by merchants and artisans fostered Buddhist growth. Further, under the Mauryas, Buddhism expanded both in India and outside. Doctrinal debates within Buddhism led to the emergence of major schools like Theravada and Mahayana.
Buddhism started to decline due to many socio-political factors. Its decline started with the Gupta dynasty, and by the 12th century CE, it almost disappeared in India; however, it continued to thrive in other Asian countries.