Which of the following is TRUE about Central Asia?
I.Central Asia covers the area extending from the Caspian Sea in the west to the border of western China in the east.
II.The former Soviet republics of Kazakhstan, Uzbekistan, Tajikistan, Kyrgyzstan, and Turkmenistan form the region.
III.There was a brief discussion after the independence of the regional countries in 1991 about how to refer to the former Soviet republics of Kazakhstan, Uzbekistan, Tajikistan, Kyrgyzstan, and Turkmenistan.