A Racing Car Accelerates Uniformly from Rest Along a Straight

Multiple Choice

A racing car accelerates uniformly from rest along a straight track.This track has markers spaced at equal distances along it from the start,as shown in the figure.The car reaches a speed of 140 km/h as it passes marker 2.
Where on the track was the car when it was traveling at half this speed,that is at 70 km/h?

A) before marker 1
B) at marker 1
C) between marker 1 and marker 2