A 2016 National Sample Survey Interviewed 1012 People Aged 18

Multiple Choice

A 2016 national sample survey interviewed 1012 people aged 18 and older, nationwide, by telephone. One question asked was "We'd like you to imagine a ladder with steps numbered from zero at the bottom to ten at the top. Suppose the top of the ladder represents the best possible situation for our country and the bottom represents the worst possible situation. Please tell me the number of the step on which you think the United States stands at the present time?" The population for this sample survey appears to be:

A) the 1012 people who were interviewed.
B) all registered voters.
C) all adult residents of the United States.
D) people who think the United States is at the best possible situation.
E) all U.S. citizens.