Here's a problem to solve: Before letting students use hammers to investigate how various minerals break, which question would the teacher most likely ask?

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

- A: Is everyone wearing goggles?
 
- B: Who will get the minerals from the shelf?
 
- C: What is the purpose of this investigation?
 
- D: Has someone volunteered to make drawings of the breaks?
 