Use the Following to Answer the Questions Below

Use the following to answer the questions below:
In a recent Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over) , 53% said that they were dissatisfied with the quality of education students receive in kindergarten through grade 12. They also report that the "margin of sampling error is plus or minus 4%."
-What is the sample being used?

A) 1,012 randomly selected U.S. adults
B) U.S. adults (age 18 and over)
C) U.S. adults dissatisfied with K-12 education
D) U.S. adults satisfied with K-12 education