In an Anatomy Lab You Are Shown Both of the Upper

In an anatomy lab you are shown both of the upper arm bones of a single individual.You note in your lab book that the diameter of the left arm bone is significantly larger than that of the right arm bone.From this you infer that

A) the individual was likely ambidextrous, lacking the dominant arm required for athletics.
B) this particular individual is a good example of the properties of Allen's rule.
C) this individual predominantly used his or her left arm for either sporting activities or daily use.
D) this individual predominantly used his or her right arm for either sporting activities or daily use.