A National Political Pollster Randomly Selects Ten States,then Randomly Selects

Multiple Choice

A national political pollster randomly selects ten states,then randomly selects five counties within each state,then randomly selects five voting precincts within these counties,then randomly selects five blocks within these precincts,and finally,randomly selects five households for door-to-door interviews about their voting intentions in the next Presidential election.This is best called a(n) ____.

A) simple random sample
B) multistage area sample
C) systematic sample
D) nonprobability sample