Ascientist performed an experiment to test her hypothesis that a disease in horses was caused by a deficiency in an important mineral. the results did not support her hypothesis. however, some of her data showed an important change in one hormone. the scientist knew that the hormone was related to a different mineral, so she formed a new hypothesis. what is the most logical step for the scientist to take next?
a. design an experiment to test the new hypothesis.
b. pose a new question to be answered.
c. replace the old hypothesis with the new hypothesis.
d. draw new conclusions to fit the new hypothesis.