Which term does not belong in this list?

Which term does not belong in this list?
A. Lactic acid
B. Vinegar (pH 3)
C. Hydrogen ion donor
D. pH 10
E. Acidic

64. A solution of pH 3 compared to a solution of pH 9
A. is more basic
B. has no OH– ions
C. has more H+ ions
D. None of the above is correct
E. All of the choices are correct.