Context: But it could have been a shoe squeaking . It could have been a stomach gurgle . It could have been a burp . It could have been the leather on someone \'s chair moving . And .. it could have been a fart . Of course , a sound like that ... it could have been a million things . I did n\'t think much of it , until she said:"OH ! Excuse me ! "
Question: What was the sound ?
Option 0: She was silent
Option 1: She passed gas
Option 2: She stayed quiet
Option 3: She said nothing
Answer: 1