23. A solid acid HX is mixed with water. Two possible solutions can be obtained. Which of the following is true?  (A) In case I, HX is acting like a weak acid, and in case II, HX is acting like a strong acid. (B) In case I, HX is acting like a strong acid, and in case II, HX is acting like a weak acid. (C) In both cases, HX is acting like a strong acid. (D) In both cases, HX is acting like a weak acid. (E) HX is not soluble in water.