A poll is planned to determine what proportion of all studentsfavor an increase in fees to support a new track and field stadium.A questionnaire will be published and the first 1000 completedquestionnaires will be analyzed. Which of the following errors willbe associated with the sample? A. Sampling errors only B. Samplingerrors and errors due to selection bias C. Only non-sampling errorsD. Errors due to interviewer bias and selection bias