<span>The best and most correct answer among the choices provided by the question is the third choice "<span>He refused to acknowledge the authority of the pope in Rome and established his own church."
</span><span>Charlemagne, also known as Charles the Great or Charles I, was King of the Franks. He united a large part of Europe during the early Middle Ages and laid the foundations for modern France, Germany and the Low Countries.</span>
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Answer:
C) magazine circulation grew with postal service innovations
Explanation: magazine circulation was already transforming america before WW1. But with the invention of the assembly line,radios being widely available thanks to credit, and also television thanks to credit. being able to buy things without actually having the money made the economy boom during the 20's but also was one of the reasons for the great depression.
