Here's a problem to solve: A carpenter covered a piece of wood with a thin sheet of paper. He struck the covered piece of wood with a hammer. The impact left a small hole in the paper that smelled of smoke. Which kind of energy transfer did this event most likely demonstrate?

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

- A: chemical to thermal
 
- B: mechanical to thermal
 
- C: mechanical to chemical
 
- D: chemical to mechanical
 