The critical combination of stresses for corner region in cement concrete roads is
(A) Load stress + warping stress frictional stress
(B) Load stress + warping stress + frictional stress
(C) Load stress + warping stress
(D) Load stress + frictional stress
(A) Load stress + warping stress frictional stress
(B) Load stress + warping stress + frictional stress
(C) Load stress + warping stress
(D) Load stress + frictional stress