The best answer I could find is that he thought inspiration came from hard work and discipline. A quote that supports this point would be when he said: "To know what you're going to draw, you have to begin drawing." So, inspirations doesn't just happen by chance.
I would say b. but i am probably wrong so I wouldn't rely on my response
No, you should let them make the choice on their own but encourage them in their decision I think and encourage them to try new things even if their afraid\ of them like stage fright :)
Hope this helped at all :)
A double bar line refers to two thin, vertical lines used to separate different sections of a musical passage.
