Context: Cartilaginous fish are a group of animals with similar traits. The following traits can be used to identify cartilaginous fish:
They have fins, not limbs.
They live underwater.
They have a skeleton made of cartilage.
They make eggs with no shells. Observe the animals and read the descriptions.
Select the one animal that has all of the cartilaginous fish traits listed above.
A. Amazon milk frogs have moist skin and live in South American rain forests. They hatch from eggs with no shells and begin their lives in water. As adults, Amazon milk frogs live in trees and eat insects.
B. Manta rays have wide, triangle-shaped fins that help them swim long distances. They have a skeleton made of cartilage, not bone. Manta ray eggs do not have shells for protection. Instead, the eggs grow and hatch inside the mother manta ray.
Select the correct answer from the given choices and respond with the letter of the chosen option.

B