Sentence 1: Charles loves the breakfast sandwiches from Mcdonald's. 
 Sentence 3: One just has to fill out a survey 
 Sentence 4:  He used the offer once a day for a week 
 Sentence 5:  Finally Mcdonald's blocked his IP address from taking the survey 
 Option 1: He learned a way to buy one sandwich and get one free. 
 Option 2: He learned that it wasn't so good for his health.