pick the answer in the right order according to 1,2,3,4,5,6
- silty-clay, clay, sand, sandy-gravel, gravel & cobble
- clay, sandy-gravel, silty-clay, rounded and sorted gravel
- clay, sand-gravel, silty-sand, till, angular grave
- clay silty-sand, sandy-gravel, angular gravel & cobbles,