Li3po4 freezing point

Given data: The molality of the aqueous solution of lithium phosphate is 0.39 m. The depression in freezing point is written as: ?Tf=Kf×m×i ? T f = K f × m. The order of increasing freezing point of C2H5OH, Ba3(PO4)2, Na2SO4, KCl and Li3PO4 is (A) Ba3(PO4)2 < Na2SO4 < Li3PO4 < C2H5OH < KCl (B) Ba3(PO4)2