Iceblossom

I like your fabrics and would be in a similar quandary. I think I'm leaning towards A but you might try looking at the yardage amounts and laying out the fabrics proportionately to see if that changes your mind.

There are 4 yards needed of Neutral (egads, my school bus yellow is going to be so bright!). There are roughly the same amounts of Dark Blue (2.5) and Framboise (2.25). Aqua and Green are smaller at 1.5 yards.

So I'd put a long strip of my neutral along one side, two big squares of the Dark Blue and Framboise, and two squares half that size of each of the aqua and green and play around a bit.

Edit: In my case, I'm using light/medium/dark values instead of colors, yellow instead of neutral and a brighter red. It can be harder to chose our fabrics the more we work with what we have on hand instead of what is designed. In the picture I posted earlier in this thread I knew my yellow and red so have those on the edges, and I'm working with the three in the middle. I simply have a reference tone/value (the paint chip) and put it in the pile that is most appropriate. I have to have the dark dark, so the medium above it must be noticeably lighter. Likewise the green I'm using has to be lighter/contrast with the aqua -- which has to be lighter/brighter than the medium!