Which of the Following Statements Is/are Incorrect

Which of the following statements is/are incorrect?
i.Undissolved sugar in contact with a saturated sugar solution in an open beaker cannot reach equilibrium
ii.A liquid and its vapor enclosed in two one-liter containers connected by an open glass tube cannot reach equilibrium
iii.A solution of a weak acid,hydronium ion,and the conjugate base of the weak acid cannot reach equilibrium

A) i only
B) ii only
C) i and ii
D) ii and iii
E) i, ii, and iii