An optimal solution is a CPF solution.

Multiple Choice

There may be multiple optimal solutions, in which case the weighted average of any optimal CPF solutions is optimal, too.

The CPF solution may lie on the line segment connectiong two basic solutions, in which case the CPF solution may not be optimal.

There may be multiple optimal solutions, in which case none of the CPF solutions are optimal.

There may be adjacent CPF solutions, in which case the nearest one to the boundary of the feasible region is the optimal solution.