Final answer:
To calibrate a pH meter for measuring a basic buffer solution, acidic buffers should be used.
Step-by-step explanation:
When calibrating a pH meter to measure a basic buffer solution, it is recommended to use acidic buffers. Acidic buffers help to adjust the pH of the meter to a lower value so that it can accurately measure the higher pH of the basic buffer solution.
Basic buffers or neutral buffers would not be suitable for calibrating a pH meter for a basic buffer solution. Salt solutions are not typically used to calibrate pH meters.