The report of a sample size of 1014 adult says, "with 95% confidence, between 9% and 15% of all Americans expect to spend more on gifts this year than last year."

What does the phrase "95% confidence mean"?

A. There is a 95% chance that the percent who expect to spend more is between 9% and 15%.

B. 9% to 15% of all Americans will spend 95% of what they spent last year.

C. The method used to get the interval 9% to 15%, when used over and over again, produces intervals which include the true population proportion 95% of the time.

D. 95% all Americans will spend between 9% and 15% more than what they spent last year.