Stuck between B or C???

QUESTION 7 Same type of track as in the previous problem, this time with d = 2.83 m. The block starts at x = 0, and is given a push to the left with an down? initial speed of 4.47 m/s, so it starts sliding up the track to the left. At what value of x will the block reverse direction and start sliding back O1.02 m O-1.02 m O-1.70 m O1.7 m