Q: What gems are created by mollusks, such as oysters?


Read this paragraph and choose the correct option from the provided answers:

Pearls are highly valued as gemstones. Most gemstones come from the Earth, but pearls come from living things. They are created by mollusks, such as oysters.

 Choices:

- crystals

- turquoise

- diamonds

- pearls


A:
pearls