With reference to the early Vedic and later Vedic periods, consider the following statements:
- In the early Vedic period cattle were the main measure of wealth, and several Rigvedic words for a fight or a raid are built on the word for cow.
- In the later Vedic period the centre of settlement moved eastward to the land between the upper Ganga and the Yamuna, where iron came into use and farming became the main occupation.
- The Rigveda names assemblies called the sabha and the samiti.
- Through the later Vedic period the samiti steadily gained power, until the king could take no important decision without its consent.
How many of the statements given above are correct?