Which monitor option has better and more color? Why? Explain. And what does it mean? Option 1: 8-bit, sRGB 128%Option 2: 10-bit, sRGB 99% ?

Question

Option 1: 8-bit, sRGB 128%

Option 2: 10-bit, sRGB 99%

I am trying to understand what is the differences and what it means. I am trying to buy a new monitor but don't understand which one has is better with color.