Which sentence best corrects the clause fragment?

As soon as I clean my room. My friends and I are going out for ice cream.


My friends and I will clean my room as soon as I go out for ice cream.

As soon as my room is clean, My friends and I are going out for ice cream.

My friends and I are going out for ice cream. As soon as I clean my room.

As soon as I clean my room, my friends and I are going out for ice cream.