Which of the following processes forms basins in an ocean-continent convergent boundary?

A) flexing and bending of the continental plate as it goes down into the subduction zone
B) flexing of the continent by weight of the thrust sheets
C) thinning of the lithosphere above the subduction zone
D) thickening of the crust by magmas from the subduction zone

Ocean-Continent Convergent Boundary

A plate-tectonic boundary where an oceanic plate converges with a continental plate, generally expressed by subduction of the oceanic plate beneath the continent.

Flexing

The act of bending or tensing a material or muscle, often referring to the way earth's crust might bend under certain geological forces.

Thinning of the Lithosphere

The reduction in thickness of the lithosphere, often occurring in response to tectonic processes such as stretching and rifting.