Determine the population and the sample.Each month a pollster questions by phone a random sample of about 10,000 people aged 21 and older living in Country X on political topics.
A. Population: 10,000 people aged 21 and older living in Country X; Sample: 21 people who get questioned
B. Population: all people living in Country X; Sample: 21 people who get questioned
C. Population: 10,000 people living in Country X; Sample: 21 people who get questioned
D. Population: people aged 21 and older living in Country X; Sample: 10,000 people who get questioned
Answer: D
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