PLEASE HELP i need a perfect grade so i can graduate!!! Which sentence is punctuated correctly?
 O Before Jimmy put on his pajamas at his grandparents' house he took a bath.
 O Before Jimmy put on his pajamas, at his grandparents' house he took a bath.
 O Before Jimmy put on his pajamas, at his grandparents' house, he took a bath.
 O Before Jimmy put on his pajamas at his grandparents' house, he took a bath.