How Were the Ural Mountains (Russia) Formed

How were the Ural Mountains (Russia) formed?

A) An active fold and thrust belt is forming as Asia and Europe continue to converge and buckle the crust along an old tectonic suture zone.
B) Kilometres of marine strata, originally deposited in a basin between the former Asian and European plates, were squeezed, folded, and uplifted as the two collided and joined to form the Eurasian plate.
C) Normal faulting from a modern continental rift is elevating large mountain blocks above the level of the vast plains on both sides of the range and giving rise to a volcanic mountain chain.
D) A large dome of Archean igneous and metamorphic rocks rose up as the Eurasian plate became situated over a mantle plume.