.) What source of bias (sampling bias, voluntary response bias, self-interest study, perceived lack of anonymity, non-response bias or loaded question) is most relevant to following situations: a. A recent study conducted by a local coffee shop owner finds that drinking coffee while studying for a math exam increases your exam score. b. A band director interviews the people sitting in the last 3 rows of auditorium to determine if the drum is too loud. c. As students drive on to campus, they are stopped and asked "Do you think Dr. Divin should raise tuition or should valuable programs like the STEM Center be eliminated?"