Not 100% sure and I'm sorry about that but I would say religion. I hope I helped.:)
Answer:
The period of Juddha Shumsher is regarded as important for development of industry of Nepal. ... During Rana period wood, leather, herbs and food grains were exported from Nepal in big quantities. The raw materials were exported even to Europe through Kolkata sea port.
Explanation:
A. Militarism. is the answer.
That is difficult, I'm not exactly sure what the context is but... I would answer with the Nile River