7) when an experiment is repeated and the new results are different from the original

7) when an experiment is repeated and the new results are different from the original results, what could you assume to be true? a) the results from both experiments are worthless. b) the first experiment's results are worthless and should be discarded. c) the experimental design is flawed and the experiment should be discarded. d) neither test results are 100% reliable and additional experimentation is needed.