Millions of years ago, the Sierra Nevada region began to be uplifted along a crack in Earth's crust. The region on the other side of the crack moved downwards. Which physical feature most likely resulted from such a motion?



A.Fault block mountain with rough edges and steep cliffs


B.Fault block mountain with waves, twists, and turns


C.Fold mountain with rough edges and steep cliffs


D.Fold mountain that appeared wavy