The correct answer to this question is number 2. How are you going to get to this answer? You can check out all of the given details first. Your main goal is to figure out the difference between the distance traveled and the displacement. The baseball player traveled a distance of 27.4 meters and 3.0 meters.
This will amount 30.4 meters. Take note that the baseball player went back to the first base which will add 3.0 meters to the total. 3.0 added to 3.0 will amount to 6. This explains why 2 is the correct answer. You have hopefully understood the explanation for this.
The answer to this is number 2. This means that the displacement is 6.0 m shorter. To answer this properly, you need to know the difference between distance and displacement. Distance is known to be the length that has been traveled no matter what the direction is. The distance traveled by the baseball player, in this case, is 27.0m and 3.0m. The total distance is 30.4m.
For displacement, this is the distance from the starting point going to the stopping point. The batter first went to the first base which is 27.4m and 3.0m. This brings the total to 30.4 meters but the baseball player went back to the first base which adds 3.0 meters again. This explains why 2 is the answer.