Choose the appropriate option that rewrites the given sentence in indirect speech.
Khushi says to Swati, "When are you going to Kanpur?"
1
Khushi asks Swati when she is going to Kanpur.
2
Khushi asked Swati when she was going to Kanpur.
3
Khushi asked Swati about going to Kanpur.
4
Khushi questioned Swati about Kanpur.