Which of the following is NOT one of the four legacies of Harappa described in the text?
A) Aryan invaders adopted some of the Indus valley agricultural techniques.
B) Aryan invaders may have adopted some religious ideas of the Indus valley civilization.
C) Aryan invaders adopted some of the settlement characteristics of the Indus valley civilization.
D) Aryan invaders nearly completely destroyed the Indus valley civilization.