Benjamin Harrison's administration focused on several issues during his presidency (1889-1893). Among the options listed, his administration addressed the following:
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Creating national forests - Harrison signed the Forest Reserve Act in 1891, which allowed for the designation of forest reserves.
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Breaking up business monopolies - The Sherman Antitrust Act was used during Harrison's presidency to address business monopolies, although the enforcement became more prominent in later administrations.
However, his administration did not significantly address:
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Cleaning up polluted air and water - This was not a primary focus during his presidency.
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Creating national child labor laws - While child labor was an issue during this time, there were no national laws established during his administration.
Thus, the accurate selections from the provided options are:
- Creating national forests
- Breaking up business monopolies