Frank is entering college and is trying to decide between a business major and a liberal arts major. He decides to conduct a random survey to see the starting salary. The top box plot shows the starting salaries for a group of business majors and the bottom boxplot shows the starting salaries for a group of liberal arts majors.

Which statement BEST compares the distributions?

A) On average the business majors had a starting salary that was greater by about $6.
B) On average the business majors had a starting salary that was greater by about $6000.
C) On average the liberal arts majors had a starting salary that was greater by about $6000.
D) On average there was a lot more variability in the business majors starting salaries than in the liberal arts majors.