For a particular load distribution and support condition in a beam of length “L, bending momentat any section ‘x’ (O <x <L)is given by $$M(x) = Ax-Bx^{2}$$, where A and B are constants. The shear force in the beam will be zero at ‘x’ equal to

A

$$\frac{A}{2B}$$

B

$$\frac{A}{B}$$

C

$$\frac{2A}{B}$$

D

$$\frac{A^{2}}{B}$$