Consider the following LP table which minimizes $z$

If this table represents the optimum solution, find the second best solution to this LP$.($Hint second best solution must be an adjacent bfs which is not optimum!$)(25$ pts$)$

$\backslash$table$[[$z$,$x$1,$x$2,$s$1,$s$2,$BV$,$RHS$],[1,-1,0,0,-2,$z$,-6],[0,1,0,1,-1,$s$1,2],[0,1,1,0,1,$x$2,3]]$