Which ratio of solute-to-solvent could be used to prepare a solution with the highest boiling point?

Which ratio of solute-to-solvent could be used to prepare a solution with the highest boiling point? a) 1g of C12H22O11 dissolved in 100 g of waterb) 1 g of NaC; dissolved per 100 g of waterc) 1 g of C12H22O11 dissolved in 1000g of waterd) 1 g of NaCl dissolved per 1000g of water