The Earth Is Divided into the Crust, the Mantle, and the Core

Multiple Choice

The earth is divided into the crust, the mantle, and the core. The crust is the solid portion on which we stand. The mantle is a plastic but solid material under the crust that can flow and move about. And finally, the core is the innermost part of the earth made of solid and molten iron. Pam Walker and Elaine Wood, Hands-On General Science Activities

A) Argument; conclusion: The mantle ... flow and move about.
B) Argument; conclusion: The crust is the solid portion on which we stand.
C) Nonargument.
D) Argument; conclusion: The core is the innermost part ... molten iron.
E) Argument; conclusion: The earth is divided into the crust, the mantle, and the core.