On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be

On a single line track, 10 goods trains loaded with iron ore run from

1.	On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be
A.	zero
B.	more in the direction A to B
C.	more in the direction B to A
D.	none of these.
Answer» C. more in the direction B to A