Notify the teacher. Sweep the pieces into a pile. Pick up the pieces and throw them away. Leave it until the experiment is complete.
I gave my students this multiple choice question: What should a student do when a glass beaker shatters during a laboratory experiment?

Only one answer is correct among these 4 choices:
- Notify the teacher.
- Sweep the pieces into a pile.
- Pick up the pieces and throw them away.
- Leave it until the experiment is complete.

Could you tell me which one is correct?

Notify the teacher.