recorded on a computer. presented in bar graphs. based on verifiable data. organized in a table.
I gave my students this multiple choice question: In order to distinguish fact from opinion, conclusions in experiments should be

Only one answer is correct among these 4 choices:
- recorded on a computer.
- presented in bar graphs.
- based on verifiable data.
- organized in a table.

Could you tell me which one is correct?

based on verifiable data.