Sentence 1: Karen saw an autobiography on TV. 
 Sentence 3: Karen began writing about what she ate that morning 
 Sentence 4:  However, she couldn't remember much else 
 Sentence 5:  Karen scrapped the idea and decided it was boring anyways 
 Option 1: She thought that she should write down some of her life. 
 Option 2: She admired people who wrote about their lives.