<span>B) the interests of the common man
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In the United States, sociology was first taught as an academic discipline at the University of Kansas in 1890, at the University of Chicago in 1892, and at Atlanta University in 1897.
Source (www.sparknotes.com/sociology/introduction-to-sociology/section1.rhtml)
The answer to the blank space is center-outward.
The proximodistal trend in general can be defined as a concept in developmental psychology where <em>humans tend to develop more general functions of limbs before developing more specific fine motor skills – this is partially what the center to outward concept implies. </em>
An example of this phenomenon would be how infants would learn how to use their arm before learning how to write.
By population which is determined by the census conducted every ten years. (each state has at least one representative)