Since this system is embedded, not displayed, choice #2 follows the rules as I understand them. The system is a spatial arrangement, which is why the spacing must be adjusted so there is no braille symbol in the vertical "column" before and after the arrangement -- that is, cells 11 and 25 must be blank on the two lines. This eliminates choice #3. Choice #1 is tempting since it seems like it might be easier or clearer to read, but there is no rule that says we should start a new line for that reason.
Hope that helps.
Lindy