Answer:
The underlined and bolded statement in the given sentences happens to be the clauses as requested.
1) he built a no.Of stupas, which are believed to hold the relics of the Buddha
2) in all, 33 such inscriptions have been found ,which are collectively reffered to as Ashoka's edicts
3) there was one kingdom in the east of India that still refused to submit to him
4) this was the kingdom of Kalinga ,which covered the present day northern Andhra Pradesh and most of Orissa
5)when he was a young prince, Ashoka' s nickname was chand(fierce) Ashoka
6) the edicts that survive say that as many as 100,000 people were killed in the war
Explanation: