[单选题]
A uniform rod of mass M and length L is pivoted at one of its eoz3l8. h i2s24uvp3u2yfusrx nu aiu1-c2.hhp ds. The rod is released uh.2 caipu-h1 from rest from the horizontal position.
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. $\frac{3g}{2L}$
