Context: Fish are a group of animals with similar traits. The following traits can be used to identify fish:
They have fins, not limbs.
They make eggs with no shells. Observe the animals and read the descriptions.
Select the one animal that has all of the fish traits listed above.
A. European flounders have a flat body and fins. They spend most of their time lying flat on the ocean floor. Both of their eyes are on the top of their head. European flounders have scaly skin and lay eggs with no shells.
B. American tree sparrows have a beak and lay eggs with shells. They have dark feathers on their wings and lighter feathers on other parts of their bodies. Male tree sparrows sing songs to attract mates.
Identify the correct choice from the options below and respond with the letter of the correct option.

A