Sentence 1: It was Kerri's first day of school. 
 Sentence 3: Kerri kept falling back asleep 
 Sentence 4:  Kerri's mother finally pulled her out of bed 
 Sentence 5:  She finally got up and started to get dressed 
 Option 1: Her mother was waking her up to get ready. 
 Option 2: Her father was waking her up to get ready.