Fact 1: The Himalayas were formed by rock folding.

Fact 2: Movements in the earth's crust have folded and cracked the older rocks.

Given the two facts above, answer the question "the Himalayas were formed from older what" with the following options: 
- soils
 - plates
 - rivers
 - rock
 - eras
 - meadows
 - dirt
 - plains


 

    rock     