The headquarters of the Commonwealth of Independent States (CIS), formed out of erstwhile USSR, is at

Minsk in Byelorussia
Moscow in Russia
Kiev in Ukraine
Kistiner in Moldavia

The correct answer is: A. Minsk in Byelorussia.

The Commonwealth of Independent States (CIS) is an intergovernmental organization consisting of 11 former constituent republics of the Soviet Union. It was established on December 8, 1991, by the Alma-Ata Protocol, and its headquarters is located in Minsk, Belarus.

The CIS was founded with the goal of promoting cooperation among its member states in the areas of economics, politics, and security. However, the organization has been plagued by internal divisions and has been largely ineffective in achieving its goals.

In recent years, the CIS has been overshadowed by other regional organizations, such as the Eurasian Economic Union and the Collective Security Treaty Organization. However, the CIS remains an important forum for dialogue and cooperation among its member states.

The other options are incorrect because:

  • Option B, Moscow in Russia, is the capital of Russia and the seat of the Russian government.
  • Option C, Kiev in Ukraine, is the capital of Ukraine and the seat of the Ukrainian government.
  • Option D, Kistiner in Moldavia, is the capital of Moldova and the seat of the Moldovan government.