The headline of a news report reads "In 2020, the average couple spent $29,000 on their wedding." The report is based on a survey of 1000 couples. The survey was conducted by a wedding planning company who found couples to survey by posting a link to a survey on their wedding planning website and offering couples a chance to win a prize if they completed the survey. The method used to find couples to survey would be an example of what kind of error?

A. A sampling error B. A response error C. A nonresponse error D. A standard error E. A margin of error