Which Pair(s) of Substances Would Make a Suitable Buffer Pair

Multiple Choice

Which pair(s) of substances would make a suitable buffer pair combination?
I. NaOH and NaBr
II. HF and NaF
III. CH₃NH₃⁺Cl ^- and CH₃NH₂

A) I only
B) II only
C) III only
D) I and II
E) II and III