Which one of the following regions of the world is called The Bread Basket of the World?

Which one of the following regions of the world is called The Bread Basket of the World?

Explanation

Temperate grassland of the world is called "the bread basket of the world". "The breadbasket of Europe" Ukraine is known as the breadbasket of Europe; along with the U.S. and Australia, it's one of the world's top wheat exporters.