Why are textual records used more to understand the times of the ‘Delhi Sultanate” as compared to the kingdom of “early” history ?
(A) The number of textual records increased in the “early” historical periods.
(B) The variety of textual records increased during ‘Delhi Sultanate’.
(C) Textual records gradually displaced other types of information available.
(D) Paper became cheaper and widely in use to record the pasts during the Sultanate period.