10
6
8
None of these
Answer is Right!
Answer is Wrong!
The correct answer is: B. 6
VP vehicles are attached in a goods train in groups of 6. This is because the maximum number of VP vehicles that can be attached to a goods train is 6. If more than 6 VP vehicles are attached to a goods train, the train will be too heavy and will not be able to travel safely.
Option A is incorrect because 10 is not the maximum number of VP vehicles that can be attached to a goods train.
Option C is incorrect because 8 is not the maximum number of VP vehicles that can be attached to a goods train.
Option D is incorrect because none of the other options are correct.