Sentence 1: MeGan tried her friend's doorbell but nothing happened. 
 Sentence 3: Megan pulled out her phone to call her friend 
 Sentence 4:  Just then the door swung open 
 Sentence 5:  A man with a sinister grin greeted her 
 Option 1: She went home and decided to try her friend later. 
 Option 2: She banged on the door but no one answered.