truck A has a single axles. one axle weights 12,000 lb and the other weights 23,000 lb. truck b has 8000 lb single axle and a 43, 000 lb tandem axle. on a flexible pavement with a 3 inch hot mix asphalt (HMA) wearing surface, a 6 inch soil cement base and an 8 inch crushed stone subbase, which truck will cause more pavement damage?(assume drainage coefficients are 1.0)