Which one of the following describes the Lithosphere?

Which one of the following describes the Lithosphere?

Upper and lower mantle
Crust and upper mantle
Crust and core
Mantle and core
This question was previously asked in
UPSC NDA-2 – 2015
The Lithosphere is defined as the rigid outer part of the Earth, consisting of the crust and the uppermost part of the mantle. It is situated above the asthenosphere, which is a more ductile layer of the upper mantle.
Understanding the layered structure of the Earth (Crust, Mantle, Core) and the physical properties of these layers (Lithosphere, Asthenosphere, Mesosphere, etc.) is key.
The lithosphere is broken into tectonic plates that move over the asthenosphere. The thickness of the lithosphere varies, being thinner under oceanic crust and thicker under continental crust.