Traits found in some or all vertebrate groups include a bony skeleton, four limbs, and an amniotic egg. Which evolved first? Which evolved next?

i think it's c

what in the weirdo : o

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.