Why Don't Historians Know Much About the Organization of Indus

Multiple Choice

Why don't historians know much about the organization of Indus society?

A) They have been unable to decipher the writing system.
B) There is scant archaeological evidence.
C) The organization is so different from other cultures, it has created confusion.
D) There appears to have been little organization in Indus society.
E) Historians have traditionally not studied Indus society until recently.