Fault lines are:

Athe crust of the lithosphere that has fractured along plate boundaries and ridges
Bthe crust of the athenosphere that has fractured along plate boundaries and ridges
Cthe crust of the biosphere that has fractured along plate boundaries and ridges
Dthe crust of the kryosphere that has fractured along plate boundaries and ridges

Verified Answer :

The answer is C
Why ?
The definition of the biosphere: is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.A example of a fault line would be the san Andreas fault line .

The crust of the lithosphere that has fractured along plate boundaries and ridges.