Answer: Occam's Razor
Explanation: Occam's Razor is the principle that describes about the situation or experiment. The explanation with the least number of assumption for that theory among all explanations is supposed to be correct.The more the number of assumptions , the more explanation tends to be incorrect.
Other options are incorrect because replication other's works is not done in the theory .Extraordinary claims are extraordinary proofs that have been contradicted before.Ruling out the hypotheses of the rival part is also not described through the question's statement.
Thus, the correct option is Occam's Razor.