If d is the constant distance between the sections, then the correct prismoidal formula for volume is

A

$$\frac{d}{3}$$[first area + last area + 4 $$\sum$$ Even area + 2 $$\sum$$ odd areas]

B

$$\frac{d}{6}$$[first area + last area + 2 $$\sum$$ Even area + 4 $$\sum$$ odd areas]

C

$$d$$[first area + last area + $$\sum$$ Even area + 2 $$\sum$$ odd areas]

D

$$\frac{d}{3}$$[first area + last area + 2 $$\sum$$ Even area + 4 $$\sum$$ odd areas]