Scientists base many of their investigations on questions that test accepted theories. Which outcome of an investigation would cause a scientist to ask a different question? The observed results are different from the expected results. The investigation had many sources of error. Another scientist proposed the same theory. The expected results could be explained in different ways.

The expected results could be explained in different ways.

Explanation:

When the results of the investigation tell a different story from the proposed investigation, that is not related to the hypothesis or research topic, it is advisable that the scientist changes their hypothesis to fit the investigation outcome.

this is a good question! i'll do some research and come back when i have the answer!