Using the information on the chart what can you infer about the gold rush’s impact on the city of San Francisco
A) San Francisco’s population grew by a greater percentage after 1860 that during the gold rush
B) the gold rush was a short-lived trend that had little lasting impact on San Francisco
C) once the forty-niners tried their luck in San Francisco they left the city and moved back home
D) the mass migration of forty-niners transformed San Francisco into an economic hub practically overnight