Fact 1: Flowing water can slowly dissolve carbon in sedimentary rock.

Fact 2: Water which moves or flows is a force.

Given the two facts above, answer the question "A force of water which moves can slowly dissolve carbon in what?" with the following options: 
- sediment
 - an area swollen with pus
 - precipitation
 - loose soil
 - rocky clouds
 - water forces
 - sedimentary rock
 - small bricks


 

       sedimentary rock  