A substance can't be rigid and molten. I wonder if you are confused by the lower mantle, also called the asthenosphere, which is not molten but can flow. In any case the layers are:
The rigid, rocky layer of the Earth is called the lithosphere.
The rigid layer of earth surrounding the asthenosphere is the lithosphere.
crust
The asthenosphere.
core
The rigid, rocky layer of the Earth is called the lithosphere.
The rigid layer of earth surrounding the asthenosphere is the lithosphere.
The outer core is the only molten layer of the Earth. == ==
it is the crust because the crust is thin and rigid with rock
crust
The asthenosphere.
core
The outermost rigid layer of the earth is called the crust.
Its Is the mantle
The Lithosphere
The Litosphere is the outermost,rigid layer of the Earth and the Crust is the outermost layer of the Earth
outer core