Amu Darya is one of the two main waterways that flow into the Aral Sea. This river is one of the main rivers of Central Asia, and is formed by merging the Vakhsh and Panj River, on the border between Tajikistan and Afghanistan. It pours into the southern parts of the Aral Sea, located between Kazakhstan on the north and Uzbekistan in the south. In Turkish translation, Aral means "island", "archipelago", because the Aral Sea spills over 1,100 small islands.
The answer is: A.
