1. For gravimetric analysis and argentometric titration, which of the following statements arecorrect?
 (1) At the equivalence point, the pAgt is dependent of the original concentrations orvolumes.
 (2) At the equivalence point, the pAgt can be found by the solubility product of theprecipitate.
(3) The larger the equilibrium constant for a titration reaction, the more pronounced will bethe change in concentration near the equivalence point.
 (4) The equivalence point is always at the center of the steepest section of the titrationcurve no matter of the stoichiometry of reactants.
 (5) The change in pAg+ at the equivalence point becomes greater as the solubility productsbecome smaller.Your answer:
(A) (2), (4) and (5)；
(B) (2) and (3)；
(C) (2), (3) and (5)；
(D) (2) and (5)；
(E) The statements are all correct.