The way the mounting social pressure forced President Roosevelt to change the war production and support industries was B. The president directed Congress to pass the Bracero program in an effort to attract more industrial workers.
This refers to the various way in which the home front and other people encourage the war effort of a country.
Hence, we can see that with increasing pressure on FDR, he was forced to pass the Bracero program in an effort to attract more industrial workers and produce more weapons.
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