Task: Text Completion
Input (English): Sentence1: There was a stray cat who loved my cat. Sentence2: He came by to see her everyday. Sentence3: I eventually took him in and let him inside, and named him Tokyo. Sentence4: He got very sick, out of nowhere. 
 (A) Both cats were very healthy. (B) I took him to the vet to treat him and he got better.
Output (English): B