A Population of Mice Has Been Monitored for Change Over

Multiple Choice

A population of mice has been monitored for change over several generations.Following are five different bones and the changes to their means and extents of variation. Tibia: Mean increased 0.14 units; variation decreased.
Femur: Mean increased 0.08 units; variation increased.
Ulna: Mean did not change; variation increased.
Clavicle: Mean did not change; variation decreased.
Radius: Mean decreased 0.12 units; variation decreased.
Which is most likely to be under diversifying selection?

A) Tibia
B) Femur
C) Ulna
D) Clavicle
E) Radius