The answer is A.) dangerous conditions in Coal Mines.
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The Indian fight for independence from the British empire received such strong support not only in India but from other countries, for teh fact that its leader, Mahatma Gandhi, decided to base the Indian Independence movement on non-violent acts.
So we can say that a big part of the success of the movement was due to the non-violence approach and tactics of its leaders.
As happened in the past, if a violent approach would have been taken, the English king could easily have sent soldiers and special troops to quickly ending with any fight or rebellion. So Gandhi really knew that a war was not a real option and many Indians could have died on the battlefield with not a real chance of winning the war.
So the nonviolent approach was the smartest decision he could have made.
