Which statement is true about this data set? {79, 66, 82, 83, 84, 86, 85, 84, 84, 85, 88}

66 is an outlier because it is less than the lower fence.

66 and 88 are both outliers because 66 is less than the lower fence and 88 is greater than the upper fence.

This data set has no outliers.

88 is an outlier because it is greater than the upper fence.