Which of the following statements from the passage most strongly indicates that the passage

Which of the following statements from the passage most strongly indicates that the passage was written prior to the twenty-first century?
A.
“The regular holding of deliberative assemblies of a thousand members encounters the gravest difficulties in respect of room and distance. . . .”
B.
“The crowd . . . is . . . readily influenced by the eloquence of popular orators.”
C.
“[T]hese same assemblies, if divided into small sections, . . . would be much more guarded in their assent.”
D.
“The sovereign masses are incapable of undertaking the most necessary resolutions.”