Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Which of the following sequences best represents the relative sizes of the mean, median, and mode for a positively skewed unimodal distribution?
Option A:mode ≤ median ≤ mean
Option B:mode < median < mean
Option C:mean < median < mode

Answer: B