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.
The administrators of regulatory commissions are always appointed by President of the United states of America. The correct option among all the options that are given in the question is option "c". The FERC members are actually appointed by the President with the consent of the United states Senate.
A. It means shortage in this case a limited quantity
Yea I’m pretty sure your answer is A