Which of the following best describes the people and government of Nigeria?

Which of the following is not a subject variable?

a. gender of participant b. age of participant c. ethnicity of participant d. decision to buy product

Compared to other Western democracies, the United States

A) has one of the largest governments among Western democracies. B) has one of the smallest governments among Western democracies. C) ranks about average in size among Western democracies. D) ranked as one of the smallest governments until 2008, then grew to one of the largest within two years. E) has one of the largest public sectors, but one of the smallest private sectors.