The correct answer is letter A.
The Craton is the oldest and most
stable part of a continent. It came from the Greek word “kratos” which means
strength. It has survived many cycles of merging and rifting of continents and
is now generally found within the interiors of the tectonic plate. They are
composed of a basement rock that is made out of ancient crystalline which are
possibly covered by younger sedimentary rock.
