Block mountains are caused by faults in the crust, where rocks can move past each other in a rift and rise. The uplifted blocks become block mountains (also known as horsts) while The intervening dropped blocks are known as graben. Which mountain range is formed this way

The Sierra Nevada mountain range of western North America, running along the eastern edge of the U.S. state of California.

Explanation:

Fault block mountains are also called fault mountains. They form as a result of expansion and contraction in the earth's crust.

Faults are cracks in the earth that are caused by tectonic movements. Rock layers on either side of a faults can now shift to form block mountains.

Some blocks are moved upward while others fall to lower heights.

The depression formed by the rock layers at the bottom are subject to erosion mountains form over time.

Sierra Nevada mountain range of western North America is an example of such mountain range. With mountain ranges referred to as the backbone of the Americas

Find below a diagrammatic representation

the correct answer is 2 and 4