<s>[INST] Buffer solutions are used in several biochemical analyses, including the calibration of pH meters and enzyme assays. There are two primary requirements for a buffer solution: a weak acid (or base) component, and a conjugate base (or acid) component. The weak acid component should be capable of donating a proton (H^+), while the conjugate base component should be capable of accepting a proton. When the weak acid component donates a proton, the resulting product should be a weak base that is very poor at accepting protons compared to water. The resulting product should also be a good buffer at a specific pH range, meaning that it should be able to resist changes in pH when acids or bases are added.

Which of the following would be a good buffer solution?[/INST]