I thinks it’s A ...
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Answer:
the first Justices complained of the Court's limited stature; they were also concerned about the burdens of “riding circuit” under primitive travel
Explanation:
First among the Justices' complaints was a mandate of the Judiciary Act of 1789 to travel a circuit to attend the circuit courts. This proved wearisome to the Justices due to the poor roads, poor lodging, and distances involved.
With the clear differences between northern and southern areas in terms of economy and politics, immigrants going to northern areas, and with the fear that the southern interests, including slavery, in congress would be weakened caused the southern people (mainly represented by whites) to cease from the Union.
