Will rate ASAP

Which of the following amino acid residues would not provide a side chain for acid-base catalysis at physiological pH? (Assume pK values of each amino acid are equal to the pK value for the free amino acid in solution.)

I. leucine

II. lysine

III. aspartic acid

IV. histidine

A) I, II, III

B) I, II

C) I

D) II

E) I, III