Seriation depends on a. the natural popularity of styles. b. arranging artifacts by frequency of use. c. being combined with stratigraphy. d. all of the above.

a. the natural popularity of styles

Explanation:

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roosevelt, a progressive reformer, earned a reputation as a "trust buster" through his regulatory reforms and anti-trust prosecutions. his "square deal" included regulation of railroad rates and pure foods and drugs; he saw it as a fair deal for both the average citizen and the businessmen.