Final answer:
The two clades of tetanurans are the carnosaurs and coelurosaurs, which are groups within the theropod dinosaurs.
answer is optiom d.
Step-by-step explanation:
The two recognized clades of tetanurans are the carnosaurs and coelurosaurs. These classifications arise from the study of dinosaurs and their evolutionary relationships within the larger group of theropod dinosaurs.
Carnosaurs include large predatory dinosaurs like Allosaurus, while coelurosaurs encompass a wider range of theropods, including the smaller, feathered dinosaurs that are considered the closest relatives of modern birds.The two clades of tetanurans are the carnosaurs and coelurosaurs, which are groups within the theropod dinosaurs.