Answer:
The answer is really A. With an advertising and education campaign
Step-by-step explanation:
A former journalist and passionate admirer of American institutions, Creel combined education and widespread advertising campaign to "sell America."
The CPI and George Creel aimed to build intellectual justification for the war. They depicted the enemy, mostly germans, as brutes and animals destroying the lives and freedom of the people they were attacking. This was done in the newspapers most of the time and lasted from 1917 to the end of the war. It was a very effective propaganda campaign
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