Answer:
the correct answer is C. cartilage is softer than bone and does not prerserve well
Explanation:
Fish fossils are usually divided into two main groups. One group includes fish with true bones, like salmon, bass, and goldfish. Scientists have found true bone fossils that are over 360 million years old. The other group includes fish with skeletons made of cartilage. Sharks, eels, and stingrays belong to this group. Most fish fossils are from species with true bones. Cartilage is softer than bone, and does not preserve as well.
this is from my school work assignment this is the correct answer, hope this helps!!!!!!