Assuming that this is referring to the same list of options that was posted before with this question, the answer is that they have gotten involved with casework for all of the following reasons except "domestic issues"
Answer:
1. The meaning behind this story is about living life with the purpose of God (I'm not christian or anything so I don't read the bible but this is an attempt)
2. The story is about the students not agreeable with the fact about God existing in our daily lives, after that the teacher teaches them a lesson by showing them some kind of experiment so that they understand the whole meaning behind it.
Building through the Sierra Nevada Mountains was very difficult and dangerous. Temperatures were freezing during the winter and in one year alone there were 44 storms.There was the great danger of an avalanche for the men working through 18 feet of snow and camping on the tunnels beneath it. Creating tunnels through the mountains required blasting with nitroglycerin. Advancing at one foot of mountain at a time, a total of 11 tunnels was created.
Answer:
By undermining the authorities of the European authorities.