A sample of 20 registered voters was surveyed in which the respondents were asked Do you think Chang Johnson Ohm or Smith is most qualified to be a senator The results of the survey are shown in the table Chang Johnson Ohm Ohm Smith Johnson Ohm Chang Johnson Johnson Johnson Chang Chang Complete parts a and b to the right Chang Smith Johnson Ohm Smith Chang Chang a Determine the mode candidate O Ohm O Johnson O Chang O Smith b Do you think it would be a good idea to rotate the candidate choices in the question Why OA Yes to avoid response bias OB Yes to make the resulting counts all closer to each other C Yes to confuse the respondents