A mountain or hill that remains when adjacent areas have eroded to lower levels is an) :

A) an erosional remnant
B) anticline
C) syncline
D) thrust fault

Erosional Remnant

A mountain or hill that remains when adjacent areas have eroded to lower levels.

Anticline

A type of fold in sedimentary strata that resembles an arch, with the oldest beds at its core.

Syncline

A fold in sedimentary strata that resembles a trough, where the youngest rocks are at the core of the fold.