Military action in Afghanistan was the United States response to the terrorist attacks of September 11, 2001. The correct option among all the options that are given in the question is the last or the fourth option. On the very date of 7th October 2007, the United States started the war in Afghanistan. The main target of the war was the destruction of Al Qaeda.
The irrigation systems helped to water crops in large fields and make sure rivers don't overflow or [under-flow]<span />
The answer is B, had this question and got it right.
