@npascher No. he said a couple lessons ago you may identify more or less than the lessons which is fine. Whats important is that you can find the subject and predicate in the sentences.

@tonyBarba I thought the exact same thing. Im assuming its not A because technically A is offering support for an opinion stated by the author due to the "probably" like you wrote. I could be wrong though.

“Conclusion”: Tigers are very aggressive and can cause serious injuries to people.

(Why?)

Because...

“Premise”: Not every mammal is suitable to keep as a pet.

What does that have to do with tigers being aggressive and causing serious injuries to people? This "premise" does not support this "conclusion".