Jasmine is an African American graduate student. She is conducting research on the effects that affirmative action programs have had on American corporations. She found that 95 percent of the subjects she personally interviewed with open-ended questions, covering a diverse sample of 500 corporate executives, stated that they approved of affirmative action. Her response rate approving affirmative action programs was dramatically higher than the national average. In view of this, Jasmine's research was most likely affected by ________.a. research fraud
b. interviewer bias
c. biased sample
d. poor interviewing technique