First off we start by the four first pit stops.
Begin at 0 seconds, then subtract 10 seconds from 0 seconds every pit stop.
Stop 1: 0-10= -10 seconds
Stop 2: -10-10= -20 seconds
Stop 3: -20-10=-30 seconds
Stop 4: -30-10= -40 seconds
Now we are -40 seconds from the leader. Since the pit crew has made adjustments for the next two stops, we add 7 seconds.
Stop 5: -40+7= -33 seconds
Stop 6: -33+7= -26 Seconds from leader.
The answer is C) -26 seconds
