What Is the Primary Reason for the Shrinking of the Aral

What is the primary reason for the shrinking of the Aral Sea?

A) There is climatic change in Central Asia.
B) Large-scale irrigation projects implemented by the Soviets in the 1950s have diverted water from the two rivers that feed the sea.
C) Tectonic rifting in the region is causing the sea's water to be removed beneath the ground surface.
D) Much of the water has been removed directly from the sea surface by the numerous nuclear desalinization plants along the Aral's shore.
E) All of the choices are correct.