Math 140 Advice columnist Ann Landers once asked her female readers whether they would be content with affectionate treatment by men, with no sex ever. Over 90,000 women wrote in. 72% answered “yes.” Many of the letters described bad experiences with relationships with men.

Which is the most accurate statement?

A) This sample is large (over 90,000), so the results are representative of the population of all women.

B) This result is not believable, so the survey is biased.

C) This poll is biased because of voluntary response.

D) This result is surprising, but reasonable, because many women have had bad relationships with men.