The bending moment of a cantilever beam of length '$$l$$' and carrying a uniformly distributed load of 'w' per unit length is __________ at the fixed end.
A
$$\frac{{{\text{w}}l}}{4}$$
B
$$\frac{{{\text{w}}l}}{2}$$
C
$${\text{w}}l$$
D
$$\frac{{{\text{w}}{l^2}}}{2}$$
Correct Answer: $$\frac{{{\text{w}}{l^2}}}{2}$$