Identify the earliest indigenous literary source for Sri Lankan history, the name Ptolemy used for Sri Lanka, a form of inscription, and the king known for early irrigation works.

Here are the answers to the questions:

Question 1:
The earliest indigenous literary source that helps to understand the history of Sri Lanka is the Dipavamsa.

• (3) தீபவம்சம்

Question 2:
Claudius Ptolemy referred to Sri Lanka as Taprobane in his world map.

• (2) தப்ரோபேன்

Question 3:
Among the given options, a copper plate is a form of inscription (Saasana).

• (1) செப்புத் தகடு

Question 4:
King Pandukabhaya is known for his early irrigation works, including the construction of tanks. While the specific details of the Tissamaharama tank and Kirindi Oya in the late