4. A campaign manager created a survey to see if the candidate could be elected into office. The survey randomly chose 1832 voters and asked them whom they would vote for. Of those surveyed, 953 people responded that they would vote for the candidate. Because there are 87,403 voters in the area, the results mean that 45,466 people would vote for this candidate. Identify a problem with the study.

A. nonresponse occurred.

B. The result is a precise number.

C. The correlation between the variables implies causality,

D. Some of the sample data are missing.