For a hypothesis to have explanatory power, it means that the hypothesis can provide a clear and coherent explanation for a set of observations or phenomena. Among the given options, none specifically address the concept of explanatory power directly. However, the closest implication is that a hypothesis with explanatory power is often well-supported by evidence, can make predictions, and is capable of being tested under various conditions.
Therefore, the most relevant option in a general context would be: "The hypothesis has been tested many times and over a wide variety of conditions." This indicates that the hypothesis has shown its ability to explain and predict outcomes consistently, which is a key component of its explanatory power.
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