The correct option is C The fossil record is now complete.
Fossils include bones or imprints of ancient organisms preserved in rock. The study of these fossil records has helped us understand our planet Earth through the changing times, starting with its origin. Fossil records are used to study huge varieties of organisms that have existed through the ancient times. Through their studies, certain groups of fossilised organisms have also been found to exhibit characters which were missing links between two existing groups of organisms. Thus, fossil studies indicate the existence of transitional species. However, these studies have been going on till date, and the discovery of the fossils of undiscovered species would continue to happen. Hence, it would be wrong to state that the fossil record is now complete.