Which of the following excerpts from "The Significance of the Frontier in American History" conveys a negative tone toward the effects of the frontier?
A.
The works of travelers along each frontier from colonial days onward describe certain common traits, and these traits have, while softening down, still persisted as survivals in the place of their origin, even when a higher social organization succeeded.
B.
Movement has been its dominant fact, and, unless this training has no effect upon a people, the American energy will continually demand a wider field for its exercise.
C.
He would be a rash prophet who should assert that the expansive character of American life has now entirely ceased.
D.
Thus each one of the periods of lax financial integrity coincides with periods when a new set of frontier communities had arisen.