Words are classified as parts of speech according to their use in a sentence
Vestigial usually refers to traits which over evolution have lost their main function and are less useful than they once were.
In number one Hunter means that he thinks the teeth were from the ancestor whale shark but are now useless or nearly useless to the current whale shark.
4 because it doesn't relate to the other 3 answers
The correct answer is C.
Hope this helps!!
