A 2005 NBC News Poll asked, "Which do you think is more likely to actually be the explanation for the origin of human life on Earth: evolution or the biblical account of creation?" The poll surveyed 800 randomly selected adults nationwide. In all, 264 of the 800 responded "evolution." (a) The sample in this setting is:

all 225 million adults in the United States.

all NBC news viewers

the 800 people interviewed.

the 264 people who chose evolution.