Train X traveled 250miles from the city A to the city B. At the same time, on the straight and parallel line, train Y traveled the same route from the city B to the city A. If two trains, X and Y went toward each other and met in 2hours, which one of them was closer to the arrival city?

(1)when train X met train Y, the average speed of train X was 70miles per hour.

(2)the average speed of train Y over the whole distance was 55 miles per hour.

My answer is A, because (2)does not show the speed per hour during for the first two hours,

but someone said the answer is D

Could you teach me which one is right?

thanks