Sentence 1: Ben was a big fan of animals. 
 Sentence 3: Ben would often take in stray animals and nurse them to health 
 Sentence 4:  He decided to attend veterinary school and graduated 
 Sentence 5:  Ben now owns the biggest animal hospital 
 Option 1: He was not allowed to have pets during his childhood. 
 Option 2: He had many pets during his childhood.