$($Difficulty: $*)$ In the class, we learned how the modulation theorem can help us tune a musical instrument. Martin showed us an example with a bass but of course the same works with a classical guitar. Listen carefully to these two samples $($with earphones, if possible$)$; each audio clip is the recording of two notes played together:

Audio clipA E

Audio Clip B $[$

Select the correct options below.

The notes are in tune in both audio clips

The notes are out of tune in both audio clips

The notes are in tune in audio clip A and out of ture in audio clip $8$

The notes are in tune in audio clip B and out of tune in audio clip A