[单选题]
A uniform rod of mass M g*(0ndip9gb( s lk:doand lengthb fa2ku:;fsj )jhms s01l r;0w L rotates around a vertical axis through its center. Two ebj;j0lfa ss0ws;f u)1 h :mr2kqual forces act on the rod as shown in the diagram.
The moment of inertia of the rod when rotating about its centre is $frac{1}{12}ML^2$.
Which of the following gives the angular acceleration of the rod?
A. 0
B. $\frac{6F}{ML}$
C. $\frac{12F}{ML}$
D. $\frac{24F}{ML}$