The career of Tegan and Sara creators of Closer demonstrates how ________?
1) when they reach a certain level of success, artists very often become greedy and just want to make even more money any way that they can
2) radio play and magazine covers are no longer enough to generate sustainable income and a supportive fan base for a band
3) the line between rock and pop has become blurred
4) female artists are now more successful than male artists
5) none of the these