which of these was Not a shared trait of early harappan and mesopotamian civilizations?

a. brick-walled cities
b. cuneiform
c. raised citadels
d. origins along a major river

my answer is A

4 answers

As far as I know both used brick walls.
Also there is some evidence that Harappan script resembled Sumerian cuneiform but I am not sure it is considered cuneiform. I guess I might pick B
No.
Which of these was NOT a shared trait of early Harappan and Mesopotamian civilizations?
B cuneiform