Answer:
There is great strength in personal sacrifice. is my opinion that I think, best states a theme in "A Chip of Glass Ruby"
The theme is the main subject that you are going to write about in a essay or in a report. If you want to know more, just ask :)
Did the leader of project healing waters attend the U.S. Naval Academy in Annapolis?
It contrasts war and peace by describing a bomber against the backdrop of a peaceful setting. (Apex)