The first days of spring are the best days.
You can tell this because it says 'Nature's first green.'
When comparing the man's legs to rubber in context, it sounds like he is unable to walk. Describing his legs as rubber would indicate they bent and bowed under his weight on them. He's probably either injured or lame.
Your right B, would make the most sense Jackson was not fond of Indian Americans so calling them savage sounds most like him.
A good thesis would be: The Los Vegas Massacre was a very deadly one, and there are many things that we could do to prevent future ones. Hope this helps and have a great day!