Here's a problem to solve: A rural area was cleared down to bare rock for constructing a road, but the road was never built. The area began to regrow. Which organisms most likely reappeared first?

Among the 4 following options, which is the correct answer?

- A: trees
 
- B: shrubs
 
- C: lichens and mosses
 
- D: weeds and crabgrass
 