Hibernating Male Ground Squirrels Emerge from Their Burrows Before the Females

Multiple Choice

Hibernating male ground squirrels emerge from their burrows before the females do,and before food is available.What important point does this fact demonstrate?​

A) Timing mechanisms are inaccurate, especially for males.
B) ​Timing mechanisms prepare animals for future needs.
C) ​Timing mechanisms are gradually evolving.
D) ​Timing mechanisms operate on a circadian basis.