Identify the correct statements about the emergence of new Rajput clans and their impact:

 

a) New Rajput clans emerged primarily in the seventeenth century.

b) They belonged to different lineages, such as Hunas and Chalukyas.

c) Many Rajput clans were previously tribes that became powerful rulers.

d) The emergence of Rajput clans led to the decline of older rulers, especially in agricultural areas.