Final answer:
Earth's interior is structured with the Core (inner and outer) at the center, surrounded by the Mantle, and with the Crust on the outside. The correct order is Core, Mantle, Crust.
Step-by-step explanation:
The radial structure of Earth's interior from the innermost to the outermost layer can be arranged as follows: Core, Mantle, and Crust. Thus, the correct answer to the arrangement question is option (b) Core, Mantle, Crust. The Earth's interior consists of the inner core, which is solid and primarily composed of an iron and nickel alloy, and the outer core, which is liquid and believed to be responsible for generating Earth's magnetic field. Surrounding the core is the mantle, a vast region that behaves in a plastic (deformable) manner, which is less dense than the core. The thin outer layer is the crust; with the different types being continental and oceanic, varying in composition and density.