Answer the following question given this paragraph: 

There are approximately 160,000 living species and probably 70,000 extinct species of mollusks. They are typically divided into ten classes, of which two are extinct. The major classes of living mollusks include gastropods, bivalves, and cephalopods ( Figure below ).


Q: The major classes of living members of this phylum include gastropods, bivalves, and cephalopods?

 Choices:

- insects

- crustaceans

- invertebrates

- mollusks

A:
mollusks
