Sentence 1: Jen was taking a shower when she heard a noise from the drain. 
 Sentence 3: Jen quickly shut the water off and the water stopped rising 
 Sentence 4:  She called a plumber and a guy came out and fixed it in an hour 
 Sentence 5:  Jen was happy it was fixed but mad because it cost two hundred bucks! 
 Option 1: Water started to back up through the shower drain and filled the tub. 
 Option 2: A tiny pebble had gone down the drain and was clinking against the metal.