Option "B". My viewer allows custom zooming. I zoomed in until the small orange square in the block in the bottom row (with the helmet) measured 1" on my monitor. It was easy to figure the rest. The orange and grey strips are 1" (cut 1.5") and the team squares finish at 3" (cut 3.5) this gives you a 5" finished block.
You need to look at your focus fabric to decide if the 10" size, as detailed by Shelby will work, or the more petite 5" size would be better. Options are always nice!!!!
In either case, the sashing is cut the same size as the strips, so either 2.5 or 1.5, finishing at 2" or 1".