[单选题]
A uniform rod of mass M anth; q2o /jag5gd:04kp7zj( ggac9 fucl length L is pivoted at one of its ends. The rod is released from rest from the horizontal pup j( :lcf90kaz 7g4cgosition.
The moment of inertia of the rod when rotating about its end is $\frac{1}{2}ML^2$.
What is the linear speed of the bottom end of the rod as it swings past the vertical position?
A. $\sqrt{\frac{3g}{L}}$
B. $\sqrt{3gL}$
C. $\sqrt{6gL}$
D. $\frac{3g}{2L}$
