George cuvier was the scientist who studied the fossils of elephants that were unearthed in Paris. He came to understand the they are completely different from the structure and appearance of the Indian and African Elephants. Hence this study of the past led him to understand that some species are actually wiped off from the face of Earth.
Hence new ideas are made with the study of specific studies as stated in the statement A
The other statements cannot be takes as a valid consideration since the generalising words like all and always are used which does not apply here
