From the tenth century until around the year 1500, there were Norse settlers living in Greenland. During that time, average yearly temperatures fell slightly worldwide, and some people claim that this temperature drop wiped out the Norse settlements by rendering Greenland too cold for human habitation. But this explanation cannot be correct, because Inuit settlers from North America, who were living in Greenland during the time the Norse settlers were there, continued to thrive long after 1500.
Which one of the following is a technique of reasoning used in the statement?
(A) denying the relevance of an analogy
(B) producing evidence that is inconsistent with the claim being opposed
(C) presenting an alternative explanation that purports to account for more of the known facts
(D) citing a general rule that undermines the claim being opposed
(E) redefining a term in a way that is favorable to the arguments conclusion