Aresult of epeirogeny is: a mountain range a plateau a river valley a continental shelf

The correct answer is mountain range.

A result of epeirogeny is called a "mountain range." Epeirogenic movement has caused the southern Rocky Mountain region to be uplifted from 1300 to 2000 m. The uplift is because of the lithospheric heating resulting from thinning and intrusion of widespread.

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).