[单选题]
07.03: Two automobiles are 150 kiloq:tj / popc:nx d(4;cymeters apart and travbh y-57u ku*bxeling toward each other.k b-uxh7*ub5 y is moving at 60 km/h and the other is moving at 40 km/h. In how many hours will they meet?
A. 1.5 hours
B. 1.75 hours
C. 2.0 hours
D. 2.5 hours
E. 3.0 hours
