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. Goldfish hatch from eggs with no shells and have scaly skin. They are popular as pets in many countries today. They were first kept as pets by people in ancient China. Goldfish have fins and live underwater.
B. Greater flameback woodpeckers have feathers and two wings. They use their strong beaks to make holes in trees. The woodpeckers use these holes as nests for their eggs, which have white shells.
Determine the correct option from the provided choices and reply with its corresponding letter.

A