Cell Phone Users Can Buy a Ringtone Version of a Song

Cell phone users can buy a ringtone version of a song in just a few seconds. This means that somewhere there is a paid worker sitting at a computer using software to edit a digital copy of the original song into a 20-second ringtone. What can you say about this worker?

A) She is affluent.
B) She must live in a country that industrialized a long time ago.
C) She must be very well educated.
D) She is probably a member of a union.
E) She is a knowledge worker.