[A] China, Russia, Mongolia, Iran, Kazha Kistan and Uzbekistan
[B] China, Russia, Iran, Uzbekistan, Tajikistan and Kyrgyzstan
[C] China, Russia, Mongolia, Kazha Kistan, Uzbekistan and Tajikistan
[D] China, Russia, Kazha Kistan, Uzbekistan, Tajikistan and Kyrgyzstan