You are presented with the question "What makes sedimentary rock turn into metamorphic?" and the following answer choices: 
- crust
 - erosion
 - thrust
 - wind
 - two
 - coal
 - calcite
 - Force

Now knowing that extreme heat and pressure change rock into metamorphic rock and sedimentary rock changes into a different form when it undergoes heat, pressure or other forces, choose the best answer.


 

        Force 