100 meters
120 meters
130 meters
140 meters
Answer is Wrong!
Answer is Right!
The correct answer is B. 120 meters.
The minimum distance between two trains in the same block section is 120 meters. This is to ensure that there is enough space for the trains to stop safely in the event of an emergency. The distance is measured from the front of one train to the rear of the other train.
Option A is incorrect because it is the distance between two locomotives. Option C is incorrect because it is the distance between two cars. Option D is incorrect because it is the distance between two wagons.