A Sample of 55 Streams in Severe Distress Was Obtained

A sample of 55 streams in severe distress was obtained during 2007. The following bar graph illustrates the number of streams that are from the Northeast, Northwest, Southeast, or Southwest. In the bar graph, the bar for the Northeast has been omitted.
Which of the following statements is correct about these data?

A) A time plot of the 2007 distribution would be more informative.
B) The bar graph is skewed to the right.
C) The bar graph is skewed to the left.
D) It would be correct to make a pie chart if you included the Northeast category.