What Is the Main Cause of the Decline in the Size

Multiple Choice

What is the main cause of the decline in the size of the Aral Sea?

A) A dam failed and as a result it drained the Aral Sea reservoir.
B) Pesticides contaminated the fish living in the sea and thus the water was drained to try and restore the fishstock.
C) Water was diverted from the sea to irrigate cotton in the Soviet Union.
D) Global warming lowered water levels due to decreases in precipitation and increases in evaporation.