The safe stopping sight distance D, may be computed from the equation
(A) D = 0.278 Vt + V²/254f
(B) D = 0.254 Vt + V²/278f
(C) D = 0.254 Vt + V²/225f
(D) D = 0.225 Vt + V²/254f
(A) D = 0.278 Vt + V²/254f
(B) D = 0.254 Vt + V²/278f
(C) D = 0.254 Vt + V²/225f
(D) D = 0.225 Vt + V²/254f