[单选题]
A uniform rod of mass M and length L rotates around a;k-mm tu6q.px vertical axis throughfqpy; :d1b*d66 xayr b its center. Two equal forces act on the yaypdb1r6d*f :;6 q xbrod 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. $\frac{24F}{ML}$
