Question

read the text.
before tuning a guitar, first learn the name of each string. a guitar has six strings: the first is on the bottom, and its the thinnest. the sixth string is on the top, and its the thickest. starting at the bottom, the notes run up e, b, g, d, a, and e.
if you have an electric tuner, hold it near the guitar and pluck the high e string (the one on the bottom) first. the tuner will determine whether the note produced by the string is flat (too low) or sharp (too high). pick each of the remaining strings. depending on what the tuner tells you, loosen the string to make the note lower or tighten it to make the note higher.
which authors purpose is suggested by the text?
to explain how to tune a guitar
to persuade readers to buy an electric tuner

Explanation:

The text begins by introducing the guitar strings and then provides a step - by - step process of using an electric tuner to tune the guitar. It does not contain any language to persuade readers to buy an electric tuner. The main focus is on explaining the tuning process.

Answer:

to explain how to tune a guitar