D) Listen to an audio clip and answer a question

Listen to the audio clip. Sohrab, the head of the band of 127 talks about the reason they named their group 127. (The audio has been re-recorded)

All of the followings are mentioned by Sohrab, except . . .

127 was the first number that came to their minds
127 is an important number in computer science
127 is a reference to an angel
127 is an unfamiliar number for Iranians