SSC JE Civil Engineering 2018 Set 5 Solved Paper

If the length of a wall on either side of a lintel opening is at least half of its effective span L, the load W carried by the lintel is equivalent to the weight of brick work contained in an equilateral triangle, producing a maximum bending moment
A.$\frac{\mathit{W}\mathit{L}}{2}$
B. $\frac{\mathit{W}\mathit{L}}{4}$
C. $\frac{\mathit{W}\mathit{L}}{6}$
D. $\frac{\mathit{W}\mathit{L}}{8}$
E. $\frac{\mathit{W}\mathit{L}}{12}$