Choose the passive voice form of the given sentence:
Sonia has told me that she wants to become a famous dancer.
1
I have been telling Sonia that she must become a famous dancer.
2
I have been told by Sonia that she wants to become a famous dancer.
3
I have been telling Sonia that I want to become a famous dancer.
4
Sonia has been telling me that she wants to become a famous dancer.