Answer: b. they will each find new data to try to support their position.
Step-by-step explanation:
Scientists are the professionals who give their opinions about the cause of the natural phenomena or process occurring worldwide supported by detailed experimental analysis.
According to the given situation, the scientists will provide data by experimental study on the basis of which they can claim which grocery item is better then the other one. If the results vary considerably can be responsible for the disagreement from both of them.