Knowing What You Know About Sample Bias, Which Would Be

Multiple Choice

Knowing what you know about sample bias, which would be the best and most representative sample to address the following research question: Does an individual's geographic origin and age affect their political affiliations?

A) a sample of residents in Alabama between the ages of 18 years and 45 years
B) a random sample of residents from each state in the United States between the ages of 18 years and 99 years
C) a random sample of residents from six southern states and six western states between the ages of 18 and 99 years
D) a sample of residents in Vermont between the ages of 18 years and 65 years