Sentence 1: Sandra drank a lot of water. 
 Sentence 3: She didn't listen 
 Sentence 4:  An hour into the drive, Sandra had to go really bad 
 Sentence 5:  When the car reached a gas station, she rushed to the restroom 
 Option 1: Her parents told her to use the restroom before the road trip. 
 Option 2: Her parents told her to use the restroom any chance she gets.