Which aqueous solution has the highest boiling point?

Which aqueous solution will have the highest boiling point? a) Circle one: i) 0.045 m BaCl, ii) 0.090 m KCI iii) 0.150 m CH206 b) Circle one: i) 1.00 m NaC,H,02 ii) 1.00 m Cabr, iii) 1.00 m CH20