I have questions on these accounting problems:

Fixed costs equals your contribution margin at your breakeven point. A. True B. False

I answered true for this one. Can some explain to me? I think I know. But, want a professionals explanation.

The Higher your margin of safety the lower your risk. A. True B. False

I answered true. Again can someone explain?

As fixed costs increase then your profits become more volatile (or less stable) as your sales change. A. True B. False