World War I made the national government much more powerful than it had ever been. ... The government also commandeered control of much of the economy to get the country ready to fight, creating new agencies to regulate industry, transportation, labor relations and agriculture.
It might be incorrect but i think
<em>A because they became more s o c i a l and more populor leading to people always eating it and suffering from obesity. </em>
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<em>pls give brainly :3</em>
