The fertile crescent followed the Nile and Euphrates rivers. was the key to the Roman Empire in classical times. was the location of the first city-states in the Middle East and the first large-scale agricultural projects of Sub-Saharan Africa. is sometimes considered to have extended from the Nile Valley to the Atlas Mountains. extended from the Persian Gulf to the Mediterranean Sea and was the location of the first city-states in the Middle East.

The correct answer is :  

extended from the Persian Gulf to the Mediterranean Sea and was the location of the first city-states in the Middle East.

Explanation:

The Fertile Crescent is very important because it gave a cue to the development and growth of the first civilizations. It was due to its agricultural capabilities.  It was recognized as fertile land.  The Babylonian, Assyrian, and Hebrew, among others, flourished as civilizations. It is also known as the birthplace of a number of technological innovations, such as the wheel and writing.

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