Can someone help me please! This is due tomorrow. What did the Mesopotamian cultures in the Near East refer to the Indus Valley and its inhabitants as?

Mesopotamia (from the Greek, meaning 'between two rivers’) was an ancient region located in the eastern Mediterranean bounded in the northeast by the Zagros Mountains and in the southeast by the Arabian Plateau, corresponding to today’s Iraq, mostly, but also parts of modern-day Iran, Syria and Turkey. The 'two rivers' of the name referred to the Tigris and the Euphrates rivers and the land was known as 'Al-Jazirah' (the island) by the Arabs referencing what Egyptologist J.H. Breasted would later call the Fertile Crescent, where Mesopotamian civilization began.

in some situations true but in others false

all of them? if not search it up