To have more firepower in future wars
The correct answer here is the option D.
When Franklin Roosevelt took office the country was fighting the greatest economic crisis in its history known as the Great Depression. Roosevelt's predecessor took more hands of approach to dealing with the problem believing that the economy would fix itself, a major reason he was not re-elected. Roosevelt took more active role in the economy and worked on creating more jobs and solving the problems of the Depression.
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2) heterogeneous, because it does not have a uniform texture
I'm not understanding your question,