The correct answer is A. Deserts
The Kara Kum is the most important desert located in Central Asia and Turkmenistan, its area is 284 900 km² for that reason, it is the 10° largest desert in the world, its name means "black sand" in Turkish. On the other hand, Kyzyl Kum is the 11° largest desert in the world, is located in Central Asia in the territory of Kazakhstan, Turkmenistan and Uzbekistan, its area is 298 000 km². So, the correct answer is A. Deserts