perform investigations using only new materials throw away glass items after investigations are complete clean up all materials and workspaces after investigations eat in the laboratory only after investigations are complete
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which is the best way a science student can help to maintain laboratory equipment?
Possibilities:
- perform investigations using only new materials
- throw away glass items after investigations are complete
- clean up all materials and workspaces after investigations
- eat in the laboratory only after investigations are complete

clean up all materials and workspaces after investigations