What is the formula used for the computation of design traffic?

• A. (N= frac{[{1+r}^n-1]}{r} A D F )
• B. (N= frac{365 [(1+r)^n-1]}{r} A D F )
• C. (N=365 [(1+r)^n-1] A D F )
• D. (N=[(1+r)^n-1] A D F )