Jenny is ordering 600 mm length aluminum sheets for her company. She finds two different suppliers and orders a box of 40 sheets from each company. She then measures each sheet and creates the dotplot to compare the companies.

Which statement correctly compares the distributions?

A) Supplier A consistently has the correct length for the aluminum sheets.
B) On average, supplier B's sheet could be at least 3 mm smaller than the advertised length.
C) On average, the length of supplier B's sheets is 2 mm greater than that of supplier A's sheet.
D) Even though there is more variability in Supplier B's length, on average they have the correct length.