Population of Clark County, Nevada

Year Population

1900 n/a

1920 4,859

1940 16,414

1960 127,016

1980 463,087

2000 1,318,000

Based on the population figures shown above, which stage of Borchert's model of urban evolution BEST fits Clark County?

A) Stage 2
B) Stage 5
C) Stage 1
D) Stage 4
E) Stage 3