The expression for the total volume of earthwork for an embankment using Simpson's one third rule, if $$A_1, A_2, A_3, A_4, ........, A_{n - 1}$$ and $$A_n$$ are the areas at n sections at an interval of h is ..............

A

$$\frac{h}{3} \times [(A_1 + A_n) + 4(A_2 + A_4 + ....) + 2(A_3 + A_5 + ....)]$$

B

$$\frac{h}{3} \times [(A_1 + A_n) + 2(A_2 + A_4 + ....) + 4(A_3 + A_5 + ....)]$$

C

$$\frac{h}{3} \times [(A_1 + A_n) + 4(A_2 + A_4 + ....) + (A_3 + A_5 + ....)]$$

D

$$\frac{h}{3} \times \left[\frac{(A_1 + A_n)}{4} + (A_2 + A_4 + ....) + (A_3 + A_5 + ....)\right]$$